/* application.js
* (c) 2008 Epernicus, LLC
*--------------------------------------------------------------------------*/
function pageOnLoad() {
if($('error-message')) {
new Effect.Highlight($('error-message'));
};
if($('success-message')) {
new Effect.Highlight($('success-message'));
};
if($('highlight-object')) {
new Effect.Highlight($('highlight-object'));
};
resetTextFieldDefaults();
P7_ExpMenu();
ensureProperTimeZone();
document.observe('benchq:changedBenchqNotificationPreference', handleBenchqNotificationPreferenceChange);
}
function defaultTextOnFocus(form_element) {
if (form_element.value == form_element.getAttribute('default_value')) {
form_element.value = '';
$(form_element).removeClassName('default');
}
}
function defaultTextOnBlur(form_element) {
if (form_element.value == '') {
$(form_element).addClassName('default');
form_element.value = form_element.getAttribute('default_value');
} else if(form_element.value != form_element.getAttribute('default_value')) {
$(form_element).removeClassName('default');
}
}
function resetTextFieldDefaults() {
fieldsToReset = $$('input.epernicus_default_text_field, textarea.epernicus_default_text_field');
for(var i = 0; i < fieldsToReset.length; i++) {
// on page load, we handle things a bit differently, as firefox preserve class as well as value state
form_element = fieldsToReset[i]
if (form_element.value == '' || form_element.value == form_element.getAttribute('default_value')) {
$(form_element).addClassName('default');
form_element.value = form_element.getAttribute('default_value');
} else {
$(form_element).removeClassName('default');
}
}
}
function handleBenchqNotificationPreferenceChange(event) {
if($('benchq-network-notification-turned-on')) {
$('benchq-network-notification-turned-on').update(event.memo.networks.indexOf(parseInt($('benchq-network-notification-turned-on').readAttribute('network_id'))) != -1 ? 'Yes' : 'No');
}
}
function clearDefaultTextFields(form) {
// find all text fields and textareas with class name of 'default' and clear their values
inputFields = $(form).getElements();
for(var i = 0; i < inputFields.length; i++) {
if(inputFields[i].hasClassName('default')) {
inputFields[i].value = '';
}
}
// return true so as to not disrupt submit chain
return true;
}
function mark_for_destroy(element, selector) {
$(element).next('.should_destroy').value = 1;
$(element).up(selector).hide();
}
function registrationSelectIncludeAdvisor() {
// show or hide the lab_membership form
if($F('include_advisor') == '1') {
defaultLabRoleAndInstitution();
$('advisor-content').show();
} else {
$('advisor-content').hide();
}
}
function defaultLabRoleAndInstitution() {
if ($('advisor-content') != null) {
// default the lab role if possible
var positionTitle = $F('position_position_title_name');
var labRole = $('lab_membership_lab_role_id').options[$('lab_membership_lab_role_id').selectedIndex].text;
if (positionTitle != '' && labRole == '') {
// find a matching lab role (if it exists)
for (var optionIndex = 0; optionIndex < $('lab_membership_lab_role_id').options.length; optionIndex++) {
if ($('lab_membership_lab_role_id').options[optionIndex].text == positionTitle) {
// found match, set the lab role and exit the loop
$('lab_membership_lab_role_id').selectedIndex = optionIndex;
break;
}
}
}
// default the lab institution if possible
var positionInstitution = $F('position_institution_name');
var labInstitution = $F('lab_membership_institution_name');
if (positionInstitution != '' && labInstitution == '') {
$('lab_membership_institution_name').value = positionInstitution;
}
}
}
function afterAssetListEdit(obj) {
// we should stripe the children and show the help text if applicable
stripeChildren(obj.element.up());
// TODO show help text
}
function stripeChildren(element) {
// loop through the children of the specified node, ensure that odd rows have the class "odd" and even rows do not
childElements = element.childElements();
var rowCount = 1;
for(var i = 0; i < childElements.length; i++) {
if(childElements[i].getStyle('display') == 'none') {
continue;
}
if(rowCount % 2 == 1) {
childElements[i].removeClassName('even');
childElements[i].addClassName('odd');
childElements[i].setStyle( { backgroundColor: '#f9f9f9' } );
}
else {
childElements[i].removeClassName('odd');
childElements[i].addClassName('even');
childElements[i].setStyle( { backgroundColor: '#ffffff' } );
}
rowCount++;
}
}
function handleSearchInput(form, text_field_id, containing_div) {
if($('class_name')) {
if($F('class_name') == 'BenchqThread') {
form.action = '/search/benchq_thread';
}
else if($F('class_name') == 'in_my_network') {
form.action = '/search/in_my_network';
}
else if($F('class_name') == 'in_my_location') {
form.action = '/search/in_my_location';
}
else {
form.action = '/search'
}
}
else {
form.action = '/search'
}
if($F(text_field_id) == '') {
containing_div.addClassName('fieldWithErrors');
return false;
}
else {
return true;
}
}
function positionAndDisplayHelpTooltip(tooltip, assetLabel) {
dim = tooltip.getDimensions();
dimLabel = assetLabel.getDimensions();
var newTop = (46 - dim.height) + 'px';
var newLeft = (dimLabel.width + 22) + 'px';
tooltip.setStyle( { top: newTop, left: newLeft });
tooltip.show();
}
function positionAndDisplaySimpleHelpTooltip(tooltip, anchor) {
var newTop = (anchor.cumulativeOffset().top + 20) + 'px';
var newLeft = anchor.cumulativeOffset().left + 'px';
tooltip.setStyle( { top: newTop, left: newLeft });
tooltip.show();
}
function closeSelectManagerPopup() {
$('select-manager-button').disabled = false;
Windows.close('select-manager');
}
function closeSelectAdvisorPopup() {
$('select-advisor-button').disabled = false;
Windows.close('select-advisor');
}
ManagerPopupManager = {
xClickPos:null,
yClickPos:null,
init: function() {
Windows.addObserver(this);
$('manager-link').observe("click", ManagerPopupManager._mouseClick);
},
onBeforeShow: function(eventName, win) {
var dim = win.element.getDimensions();
win.setLocation(ManagerPopupManager.yClickPos - (dim.height / 2), ManagerPopupManager.xClickPos + 8);
},
_mouseClick: function (event) {
ManagerPopupManager.xClickPos = Event.pointerX(event);
ManagerPopupManager.yClickPos = Event.pointerY(event);
}
};
AdvisorPopupManager = {
xClickPos:null,
yClickPos:null,
init: function() {
Windows.addObserver(this);
$('advisor-link').observe("click", AdvisorPopupManager._mouseClick);
},
onBeforeShow: function(eventName, win) {
var dim = win.element.getDimensions();
win.setLocation(AdvisorPopupManager.yClickPos - (dim.height / 2), AdvisorPopupManager.xClickPos + 8);
},
_mouseClick: function (event) {
AdvisorPopupManager.xClickPos = Event.pointerX(event);
AdvisorPopupManager.yClickPos = Event.pointerY(event);
}
};
// given an original string and a substring that may appear in the original string, returns a new
// string with the first case-insensitive occurance of the substring bolded
function boldSubstring(original, subString) {
var index =
original.toLowerCase().indexOf(subString.toLowerCase());
if (index == -1) {
return original;
}
return original.substring(0, index) + '' + original.substr(index, subString.length) +
'' + original.substring(index + subString.length);
}
function isMacFirefox() {
return navigator && navigator.appVersion.indexOf('Macintosh') != -1 && navigator.userAgent.indexOf('AppleWebKit') == -1;
}
var benchq_window = null;
function launchBenchQ(options) {
if (benchq_window != null && !benchq_window.closed && benchq_window.benchq) {
benchq_window.focus();
handleBenchqOptions(benchq_window.benchq, options);
if (options.observe_preference_changes) {
Event.observe(benchq_window, 'load', function() { benchq_window.document.observe('benchq:changedBenchqNotificationPreference', options.observe_preference_changes); });
}
} else {
var window_options;
if (options.debug) {
window_options = "width=860,height=763,resizable=yes,scrollbars=yes,status=yes";
} else {
window_options = "width=860,height=563,resizable=no,scrollbars=no,status=no";
}
benchq_window = window.open('', "benchq", window_options);
if (benchq_window.benchq) {
benchq_window.focus();
handleBenchqOptions(benchq_window.benchq, options);
if (options.observe_preference_changes) {
Event.observe(benchq_window, 'load', function() { benchq_window.document.observe('benchq:changedBenchqNotificationPreference', options.observe_preference_changes); });
}
} else {
var benchq_url = "/benchq_threads/standalone";
if (options.debug || options.show_thread || options.start_thread_to || options.launch_preferences_popup) {
benchq_url += '?';
}
if (options.debug) {
benchq_url += 'debug=true';
}
if (options.show_thread) {
benchq_url += '&show_thread=' + options.show_thread;
}
if (options.start_thread_to) {
benchq_url += '&start_thread_to=' + options.start_thread_to;
}
if (options.launch_preferences_popup) {
benchq_url += '&launch_preferences_popup=true';
}
benchq_window.location.href = benchq_url;
if (!benchq_window.opener) benchq_window.opener = self;
if (benchq_window.focus) benchq_window.focus();
if (options.observe_preference_changes) {
Event.observe(benchq_window, 'load', function() { benchq_window.document.observe('benchq:changedBenchqNotificationPreference', options.observe_preference_changes); });
}
}
}
}
function handleBenchqOptions(benchq, options) {
if (options.show_thread) {
benchq.showThread(options.show_thread)
}
if (options.start_thread_to) {
benchq.startThreadTo(options.start_thread_to)
}
if (options.launch_preferences_popup) {
benchq.launchPreferencesPopup();
}
benchq_window.focus();
}
function showBenchqThread(id) {
launchBenchQ({show_thread: id});
}
function startBenchqThreadTo(id) {
launchBenchQ({start_thread_to: id});
}
function closeBenchqOverview() {
Windows.close('benchq-overview-window');
$('benchq-overview').hide();
}
function setHeaderBarUnreadBenchqCount(count, benchq_name) {
if($('header-bar-unread-benchq-count')) {
$('header-bar-unread-benchq-count').update(count == 0 ? '' + benchq_name + '' : ('' + pluralize(count, 'Unread ' + benchq_name, 'Unread ' + benchq_name + 's') + ''));
}
}
function setDashboardUnreadBenchqCount(count, benchq_name) {
if($('dashboard-unread-benchq-count')) {
$('dashboard-unread-benchq-count').update(count == 0 ? 'No unread ' + benchq_name + 's' : ('' + pluralize(count, 'Unread ' + benchq_name, 'Unread ' + benchq_name + 's') + ''));
}
}
function pluralize(count, singular, plural, textForZero) {
if(parseInt(count) == 0) {
return (textForZero == null) ? ('0 ' + plural) : (textForZero + ' ' + plural);
}
else if(parseInt(count) == 1) {
return count + ' ' + singular;
}
else {
return count + ' ' + plural;
}
}
var preload_image_array = Array();
function preloadImage(image_path) {
preloadImages([image_path]);
}
function preloadImages(image_paths) {
for (var i = 0; i < image_paths.length; i++) {
var image = new Image();
preload_image_array.push(image);
image.src = image_paths[i];
}
}
function pasteAtCursorPosition(field, value) {
if (document.selection) {
field.focus();
selection = document.selection.createRange();
selection.text = value;
}
else if (field.selectionStart || field.selectionStart == '0') {
field.focus();
var startPosition = field.selectionStart;
var endPosition = field.selectionEnd;
field.value = field.value.substring(0, startPosition) + value + field.value.substring(endPosition, field.value.length);
} else {
field.focus();
field.value += field;
}
}
function zoomOneFigure(zoomed) {
if(zoomed == true) {
zoomUserPhoto(false);
if($('zoomed-one-figure')) {
$('zoomed-one-figure').show();
$('button-unzoom-one-figure').show();
$('button-zoom-one-figure').hide();
$('one-figure').setStyle({cursor: 'default'});
}
}
else {
if($('zoomed-one-figure')) {
$('zoomed-one-figure').hide();
$('button-unzoom-one-figure').hide();
$('button-zoom-one-figure').show();
$('one-figure').setStyle({cursor: 'pointer'});
}
}
}
function zoomUserPhoto(zoomed) {
if(zoomed == true) {
zoomOneFigure(false);
if($('zoomed-user-photo') && $('user-photo')) {
$('zoomed-user-photo').show();
$('user-photo').setStyle({cursor: 'default'});
}
}
else {
if($('zoomed-user-photo') && $('user-photo')) {
$('zoomed-user-photo').hide();
$('user-photo').setStyle({cursor: 'pointer'});
}
}
}
function zoomWowPhoto(zoomed) {
if(zoomed == true) {
zoomOneFigure(false);
if($('zoomed-wow-photo') && $('wow-photo')) {
$('zoomed-wow-photo').show();
if (($('zoomed-wow-photo-image').offsetHeight + 100) > $('wow-gallery').offsetHeight)
$('wow-gallery').style.height = "" + ($('zoomed-wow-photo-image').offsetHeight + 160) + "px";
$('wow-photo').setStyle({cursor: 'default'});
}
}
else {
if($('zoomed-wow-photo') && $('wow-photo')) {
$('zoomed-wow-photo').hide();
$('wow-photo').setStyle({cursor: 'pointer'});
}
}
}
function posterPreview(poster_id) {
var win = new Window('poster-preview-popup-' + poster_id,
{ className: 'simple',
closable: false,
draggable: false,
maximizable: false,
minimizable: false,
resizable: false,
width: 915,
height: 728,
zIndex: 1100,
recenterAuto: false
} );
win.setAjaxContent('/posters/' + poster_id + '/preview', { method: 'get' }, false, true);
var windowScroll = WindowUtilities.getWindowScroll(win.options.parent);
win.centerHorizontal(15 + windowScroll.top);
win.setDestroyOnClose();
}
function scrollToIfNotVisible(name) {
var offset = $(name).viewportOffset().top;
if (offset < 0 || offset > document.viewport.getHeight() - 10) {
$(name).scrollTo();
}
}
function ensureContactsSelected(form) {
var checkbox_elements = form.getInputs('checkbox');
var count = 0;
for(count = 0; count < checkbox_elements.length; count++) {
email = checkbox_elements[count];
if(email.checked) {
return true;
}
}
window.alert('You must select at least one contact.');
return false;
}
function setWebContactEmailProvider(provider) {
$('gmail').hide();
$('yahoo').hide();
$('aol').hide();
if(provider != null) {
$('email_provider_' + provider).checked = true;
}
$(Form.getInputs('email_provider_selection_form', 'radio').find(function(radio) { return radio.checked; }).value).show();
}
function displayCommunityFields(community_id) {
$('community-2-fields').hide();
$('community-3-fields').hide();
$('community-4-fields').hide();
$('community-5-fields').hide();
$('community-' + community_id + '-fields').show();
}
function toggleCommunityCheckbox(community_id) {
var checkbox = $('community-checkbox-' + community_id);
checkbox.checked = checkbox.checked ? false : true;
}
function signInPrompt(requested_url) {
var win = new Window('sign-in-prompt-popup',
{ className: 'simple',
closable: false,
draggable: false,
height: 328,
maximizable: false,
minimizable: false,
resizable: false,
width: 537,
zIndex: 1000
} );
win.setAjaxContent('/login/popup?on_login=' + escape(requested_url), { method: 'get' }, true, true);
win.setDestroyOnClose();
}
function closeSignInPrompt() {
Windows.close('sign-in-prompt-popup');
}
function selectDashboardSpotlight(type, index) {
// select the indexth spotlight item
clearDashboardSpotlightNav(type);
$('dashboard-' + type + '-spotlight-' + index).addClassName('dashboard-spotlight-item-active');
clearDashboardSpotlightPanes(type);
$('dashboard-' + type + '-spotlight-holder-' + index).show();
}
function clearDashboardSpotlightPanes(type) {
// find all spotlight panes hide them
fieldsToHide = $$('div#dashboard-' + type + '-spotlight div.dashboard-spotlight-holder');
for(var i = 0; i < fieldsToHide.length; i++) {
fieldsToHide[i].hide();
}
}
function clearDashboardSpotlightNav(type) {
// find all spotlight nav options and remove the active class
fieldsToClear = $$('div#dashboard-' + type + '-spotlight a.dashboard-spotlight-item');
for(var i = 0; i < fieldsToClear.length; i++) {
fieldsToClear[i].removeClassName('dashboard-spotlight-item-active');
}
}
function switchDashboardPanel(panel_name) {
nav_tabs = $$('div#dashboard-status-panel div#navigation li');
status_panels = $$('div#dashboard-status-panel div#panels > div');
// hide all panels, if any are in their confirmation state, reset them
for(var i = 0; i < status_panels.length; i++) {
status_panels[i].hide();
if(status_panels[i].getAttribute('confirmation') == '1') {
if(status_panels[i].getAttribute('id') == 'post-question') {
new Ajax.Request('/benchq_threads/new/dashboard_status_panel_reset', {asynchronous:true, evalScripts:true, method:'get'});
}
else if(status_panels[i].getAttribute('id') == 'share-link') {
new Ajax.Request('/shared_links/new/dashboard_status_panel_reset', {asynchronous:true, evalScripts:true, method:'get'});
}
else if(status_panels[i].getAttribute('id') == 'post-wow') {
new Ajax.Request('/wows/new/dashboard_status_panel_reset', {asynchronous:true, evalScripts:true, method:'get'});
}
}
}
// reset the nav tabs
for(var i = 0; i < nav_tabs.length; i++) {
nav_tabs[i].removeClassName('active');
}
// show the selected panel
$(panel_name).show();
// set the nav tab
$(panel_name + '-tab').addClassName('active');
}
function togglePopup(container_element,location_element) {
container_element.setStyle({ top: (location_element.positionedOffset().top + 51) + 'px', left: (location_element.positionedOffset().left - 73) + 'px' });
container_element.toggle();
}
function selectProfileAnnouncement(index) {
clearProfileAnnouncementNav();
$('profile-announcement-' + index).addClassName('profile-announcement-active');
clearProfileAnnouncementPanes();
$('profile-announcement-holder-' + index).show();
}
function clearProfileAnnouncementPanes() {
fieldsToHide = $$('div.profile-announcement-holder');
for(var i = 0; i < fieldsToHide.length; i++) {
fieldsToHide[i].hide();
}
}
function clearProfileAnnouncementNav() {
fieldsToClear = $$('a.profile-announcement');
for(var i = 0; i < fieldsToClear.length; i++) {
fieldsToClear[i].removeClassName('profile-announcement-active');
}
}
function toggleCommentsPane(id) {
pane = $('comments-pane-' + id);
pane.toggle();
if (pane.visible()) {
$('toggle-comments-pane-' + id).update('hide comments');
} else {
$('toggle-comments-pane-' + id).update('comment');
}
}
function displayProjectCollaboratorsPopup(id) {
if($('collaborators-for-project-' + id).visible()) {
$('collaborators-for-project-' + id).hide();
} else {
divsToHide = $$('div.project-collaborators-popup');
for(var i = 0; i < divsToHide.length; i++) {
divsToHide[i].hide();
}
$('collaborators-for-project-' + id).clonePosition($('clone-anchor-' + id), { offsetTop:2, offsetLeft:-120, setLeft:true, setTop:true, setWidth:false, setHeight:false } );
$('collaborators-for-project-' + id).show();
}
}
function selectNetworkPageAction(activePaneId) {
if($(activePaneId).visible()) {
hideNetworkPageActions();
}
else {
hideNetworkPageActions();
$(activePaneId).show();
}
}
function hideNetworkPageActions() {
$('send-benchq-popup').hide();
$('upload-document-popup').hide();
$('make-announcement-popup').hide();
}
function setDashbordFeedEventsFilter(activeFilterId) {
fieldsToClear = $$('div#dashboard-feed-event-filter-options a');
for(var i = 0; i < fieldsToClear.length; i++) {
fieldsToClear[i].removeClassName('dashboard-feed-event-filter-option-active');
}
$(activeFilterId).addClassName('dashboard-feed-event-filter-option-active');
}
function updateCharactersRemaining(text_field_element, status_element, maximum) {
if (text_field_element.hasClassName('default')) {
characters_remaining = maximum;
} else {
characters_remaining = maximum - text_field_element.value.length;
}
if (characters_remaining < 0) {
text_field_element.value = text_field_element.value.substring(0, maximum);
characters_remaining = 0;
}
status_element.update(characters_remaining.toString() + (characters_remaining == 1 ? ' char' : ' chars') + ' left');
}
function loadGroupPage(sort) {
if(sort == false) {
// sort was not specified, determine sort from classes
if($('group-sort-filter-control-alpha').hasClassName('group-sort-filter-control-active')) {
sort = 'alpha'
}
else if($('group-sort-filter-control-size').hasClassName('group-sort-filter-control-active')) {
sort = 'size'
}
else if($('group-sort-filter-control-new').hasClassName('group-sort-filter-control-active')) {
sort = 'new'
}
else {
sort = 'active'
}
}
activeFilterId = $('group_filter_group_category_id').getValue();
activeSortId = "group-sort-filter-control-" + sort;
// first set the sort button classes
fieldsToClear = $$('div#group-filter-controls a');
for(var i = 0; i < fieldsToClear.length; i++) {
fieldsToClear[i].removeClassName('group-sort-filter-control-active');
}
$(activeSortId).addClassName('group-sort-filter-control-active');
// now issue the AJAX request
$('group-filter-spinner').show();
new Ajax.Request('/groups/load_page?filter=' + activeFilterId + '&sort=' + sort, {asynchronous:true, evalScripts:true, method:'get', onComplete:function(request){$('group-filter-spinner').hide()}});
return false;
}
function loadPosterPage(poster_event_id, sort) {
if(sort == false) {
// sort was not specified, determine sort from classes
if($('poster-sort-filter-control-topic').hasClassName('poster-sort-filter-control-active')) {
sort = 'topic'
}
else if($('poster-sort-filter-control-comments').hasClassName('poster-sort-filter-control-active')) {
sort = 'comments'
}
else if($('poster-sort-filter-control-kudos').hasClassName('poster-sort-filter-control-active')) {
sort = 'kudos'
}
else {
sort = 'topic'
}
}
activeFilterId = $('poster_filter_topic_string').getValue();
activeSortId = "poster-sort-filter-control-" + sort;
// first set the sort button classes
fieldsToClear = $$('div#poster-filter-controls a');
for(var i = 0; i < fieldsToClear.length; i++) {
fieldsToClear[i].removeClassName('poster-sort-filter-control-active');
}
$(activeSortId).addClassName('poster-sort-filter-control-active');
// now issue the AJAX request
$('poster-filter-spinner').show();
new Ajax.Request('/posters/load_page?poster_event_id=' + poster_event_id + '&filter=' + activeFilterId + '&sort=' + sort, {asynchronous:true, evalScripts:true, method:'get', onComplete:function(request){$('poster-filter-spinner').hide()}});
return false;
}
// this function checks the current time zone, and lets the server know if the time zone has changed
// the server will then store the time zone as part of the user record
function ensureProperTimeZone() {
var system_offset_and_dst = getSystemOffsetAndDST();
var system_offset = system_offset_and_dst[0];
var system_is_dst = system_offset_and_dst[1];
var update_system_timezone = false;
// initialize the cookie jar
jar = new CookieJar({ expires:864000, path: '/' }); // expires in ten days
if(jar.get('time_zone')) {
// found cookie -- check to see if the system offset is different than the cookie offset
if(jar.get('time_zone').offset != system_offset || jar.get('time_zone').is_dst != system_is_dst) {
update_system_timezone = true;
}
}
else {
update_system_timezone = true;
}
if(update_system_timezone) {
jar.put('time_zone', { offset:system_offset, is_dst:system_is_dst });
new Ajax.Request('/home/set_time_zone?offset=' + system_offset + '&is_dst=' + system_is_dst, {asynchronous:true, evalScripts:true, method:'post'});
}
}
function getSystemOffsetAndDST(){
var test_date = new Date('1/1/' + (new Date()).getUTCFullYear());
var system_offset = (new Date()).getTimezoneOffset();
var current_offset = system_offset;
var month;
var is_dst = 0;
for (month = 0; month < 12; month++) {
test_date.setUTCMonth(test_date.getUTCMonth() + 1);
// if the system offset is smaller than another month's offset, we are currently in DST
if(system_offset < test_date.getTimezoneOffset()) {
is_dst = 1;
}
// maintain the largest offset -- that is the non-DST offset (which we will need in Rails)
if(current_offset < test_date.getTimezoneOffset()) {
current_offset = test_date.getTimezoneOffset();
}
}
return [current_offset, is_dst];
}
/* Prototype JavaScript framework, version 1.6.0.3
* (c) 2005-2008 Sam Stephenson
*
* Prototype is freely distributable under the terms of an MIT-style license.
* For details, see the Prototype web site: http://www.prototypejs.org/
*
*--------------------------------------------------------------------------*/
var Prototype = {
Version: '1.6.0.3',
Browser: {
IE: !!(window.attachEvent &&
navigator.userAgent.indexOf('Opera') === -1),
Opera: navigator.userAgent.indexOf('Opera') > -1,
WebKit: navigator.userAgent.indexOf('AppleWebKit/') > -1,
Gecko: navigator.userAgent.indexOf('Gecko') > -1 &&
navigator.userAgent.indexOf('KHTML') === -1,
MobileSafari: !!navigator.userAgent.match(/Apple.*Mobile.*Safari/)
},
BrowserFeatures: {
XPath: !!document.evaluate,
SelectorsAPI: !!document.querySelector,
ElementExtensions: !!window.HTMLElement,
SpecificElementExtensions:
document.createElement('div')['__proto__'] &&
document.createElement('div')['__proto__'] !==
document.createElement('form')['__proto__']
},
ScriptFragment: ']*>([\\S\\s]*?)<\/script>',
JSONFilter: /^\/\*-secure-([\s\S]*)\*\/\s*$/,
emptyFunction: function() { },
K: function(x) { return x }
};
if (Prototype.Browser.MobileSafari)
Prototype.BrowserFeatures.SpecificElementExtensions = false;
/* Based on Alex Arnell's inheritance implementation. */
var Class = {
create: function() {
var parent = null, properties = $A(arguments);
if (Object.isFunction(properties[0]))
parent = properties.shift();
function klass() {
this.initialize.apply(this, arguments);
}
Object.extend(klass, Class.Methods);
klass.superclass = parent;
klass.subclasses = [];
if (parent) {
var subclass = function() { };
subclass.prototype = parent.prototype;
klass.prototype = new subclass;
parent.subclasses.push(klass);
}
for (var i = 0; i < properties.length; i++)
klass.addMethods(properties[i]);
if (!klass.prototype.initialize)
klass.prototype.initialize = Prototype.emptyFunction;
klass.prototype.constructor = klass;
return klass;
}
};
Class.Methods = {
addMethods: function(source) {
var ancestor = this.superclass && this.superclass.prototype;
var properties = Object.keys(source);
if (!Object.keys({ toString: true }).length)
properties.push("toString", "valueOf");
for (var i = 0, length = properties.length; i < length; i++) {
var property = properties[i], value = source[property];
if (ancestor && Object.isFunction(value) &&
value.argumentNames().first() == "$super") {
var method = value;
value = (function(m) {
return function() { return ancestor[m].apply(this, arguments) };
})(property).wrap(method);
value.valueOf = method.valueOf.bind(method);
value.toString = method.toString.bind(method);
}
this.prototype[property] = value;
}
return this;
}
};
var Abstract = { };
Object.extend = function(destination, source) {
for (var property in source)
destination[property] = source[property];
return destination;
};
Object.extend(Object, {
inspect: function(object) {
try {
if (Object.isUndefined(object)) return 'undefined';
if (object === null) return 'null';
return object.inspect ? object.inspect() : String(object);
} catch (e) {
if (e instanceof RangeError) return '...';
throw e;
}
},
toJSON: function(object) {
var type = typeof object;
switch (type) {
case 'undefined':
case 'function':
case 'unknown': return;
case 'boolean': return object.toString();
}
if (object === null) return 'null';
if (object.toJSON) return object.toJSON();
if (Object.isElement(object)) return;
var results = [];
for (var property in object) {
var value = Object.toJSON(object[property]);
if (!Object.isUndefined(value))
results.push(property.toJSON() + ': ' + value);
}
return '{' + results.join(', ') + '}';
},
toQueryString: function(object) {
return $H(object).toQueryString();
},
toHTML: function(object) {
return object && object.toHTML ? object.toHTML() : String.interpret(object);
},
keys: function(object) {
var keys = [];
for (var property in object)
keys.push(property);
return keys;
},
values: function(object) {
var values = [];
for (var property in object)
values.push(object[property]);
return values;
},
clone: function(object) {
return Object.extend({ }, object);
},
isElement: function(object) {
return !!(object && object.nodeType == 1);
},
isArray: function(object) {
return object != null && typeof object == "object" &&
'splice' in object && 'join' in object;
},
isHash: function(object) {
return object instanceof Hash;
},
isFunction: function(object) {
return typeof object == "function";
},
isString: function(object) {
return typeof object == "string";
},
isNumber: function(object) {
return typeof object == "number";
},
isUndefined: function(object) {
return typeof object == "undefined";
}
});
Object.extend(Function.prototype, {
argumentNames: function() {
var names = this.toString().match(/^[\s\(]*function[^(]*\(([^\)]*)\)/)[1]
.replace(/\s+/g, '').split(',');
return names.length == 1 && !names[0] ? [] : names;
},
bind: function() {
if (arguments.length < 2 && Object.isUndefined(arguments[0])) return this;
var __method = this, args = $A(arguments), object = args.shift();
return function() {
return __method.apply(object, args.concat($A(arguments)));
}
},
bindAsEventListener: function() {
var __method = this, args = $A(arguments), object = args.shift();
return function(event) {
return __method.apply(object, [event || window.event].concat(args));
}
},
curry: function() {
if (!arguments.length) return this;
var __method = this, args = $A(arguments);
return function() {
return __method.apply(this, args.concat($A(arguments)));
}
},
delay: function() {
var __method = this, args = $A(arguments), timeout = args.shift() * 1000;
return window.setTimeout(function() {
return __method.apply(__method, args);
}, timeout);
},
defer: function() {
var args = [0.01].concat($A(arguments));
return this.delay.apply(this, args);
},
wrap: function(wrapper) {
var __method = this;
return function() {
return wrapper.apply(this, [__method.bind(this)].concat($A(arguments)));
}
},
methodize: function() {
if (this._methodized) return this._methodized;
var __method = this;
return this._methodized = function() {
return __method.apply(null, [this].concat($A(arguments)));
};
}
});
Date.prototype.toJSON = function() {
return '"' + this.getUTCFullYear() + '-' +
(this.getUTCMonth() + 1).toPaddedString(2) + '-' +
this.getUTCDate().toPaddedString(2) + 'T' +
this.getUTCHours().toPaddedString(2) + ':' +
this.getUTCMinutes().toPaddedString(2) + ':' +
this.getUTCSeconds().toPaddedString(2) + 'Z"';
};
var Try = {
these: function() {
var returnValue;
for (var i = 0, length = arguments.length; i < length; i++) {
var lambda = arguments[i];
try {
returnValue = lambda();
break;
} catch (e) { }
}
return returnValue;
}
};
RegExp.prototype.match = RegExp.prototype.test;
RegExp.escape = function(str) {
return String(str).replace(/([.*+?^=!:${}()|[\]\/\\])/g, '\\$1');
};
/*--------------------------------------------------------------------------*/
var PeriodicalExecuter = Class.create({
initialize: function(callback, frequency) {
this.callback = callback;
this.frequency = frequency;
this.currentlyExecuting = false;
this.registerCallback();
},
registerCallback: function() {
this.timer = setInterval(this.onTimerEvent.bind(this), this.frequency * 1000);
},
execute: function() {
this.callback(this);
},
stop: function() {
if (!this.timer) return;
clearInterval(this.timer);
this.timer = null;
},
onTimerEvent: function() {
if (!this.currentlyExecuting) {
try {
this.currentlyExecuting = true;
this.execute();
} finally {
this.currentlyExecuting = false;
}
}
}
});
Object.extend(String, {
interpret: function(value) {
return value == null ? '' : String(value);
},
specialChar: {
'\b': '\\b',
'\t': '\\t',
'\n': '\\n',
'\f': '\\f',
'\r': '\\r',
'\\': '\\\\'
}
});
Object.extend(String.prototype, {
gsub: function(pattern, replacement) {
var result = '', source = this, match;
replacement = arguments.callee.prepareReplacement(replacement);
while (source.length > 0) {
if (match = source.match(pattern)) {
result += source.slice(0, match.index);
result += String.interpret(replacement(match));
source = source.slice(match.index + match[0].length);
} else {
result += source, source = '';
}
}
return result;
},
sub: function(pattern, replacement, count) {
replacement = this.gsub.prepareReplacement(replacement);
count = Object.isUndefined(count) ? 1 : count;
return this.gsub(pattern, function(match) {
if (--count < 0) return match[0];
return replacement(match);
});
},
scan: function(pattern, iterator) {
this.gsub(pattern, iterator);
return String(this);
},
truncate: function(length, truncation) {
length = length || 30;
truncation = Object.isUndefined(truncation) ? '...' : truncation;
return this.length > length ?
this.slice(0, length - truncation.length) + truncation : String(this);
},
strip: function() {
return this.replace(/^\s+/, '').replace(/\s+$/, '');
},
stripTags: function() {
return this.replace(/<\/?[^>]+>/gi, '');
},
stripScripts: function() {
return this.replace(new RegExp(Prototype.ScriptFragment, 'img'), '');
},
extractScripts: function() {
var matchAll = new RegExp(Prototype.ScriptFragment, 'img');
var matchOne = new RegExp(Prototype.ScriptFragment, 'im');
return (this.match(matchAll) || []).map(function(scriptTag) {
return (scriptTag.match(matchOne) || ['', ''])[1];
});
},
evalScripts: function() {
return this.extractScripts().map(function(script) { return eval(script) });
},
escapeHTML: function() {
var self = arguments.callee;
self.text.data = this;
return self.div.innerHTML;
},
unescapeHTML: function() {
var div = new Element('div');
div.innerHTML = this.stripTags();
return div.childNodes[0] ? (div.childNodes.length > 1 ?
$A(div.childNodes).inject('', function(memo, node) { return memo+node.nodeValue }) :
div.childNodes[0].nodeValue) : '';
},
toQueryParams: function(separator) {
var match = this.strip().match(/([^?#]*)(#.*)?$/);
if (!match) return { };
return match[1].split(separator || '&').inject({ }, function(hash, pair) {
if ((pair = pair.split('='))[0]) {
var key = decodeURIComponent(pair.shift());
var value = pair.length > 1 ? pair.join('=') : pair[0];
if (value != undefined) value = decodeURIComponent(value);
if (key in hash) {
if (!Object.isArray(hash[key])) hash[key] = [hash[key]];
hash[key].push(value);
}
else hash[key] = value;
}
return hash;
});
},
toArray: function() {
return this.split('');
},
succ: function() {
return this.slice(0, this.length - 1) +
String.fromCharCode(this.charCodeAt(this.length - 1) + 1);
},
times: function(count) {
return count < 1 ? '' : new Array(count + 1).join(this);
},
camelize: function() {
var parts = this.split('-'), len = parts.length;
if (len == 1) return parts[0];
var camelized = this.charAt(0) == '-'
? parts[0].charAt(0).toUpperCase() + parts[0].substring(1)
: parts[0];
for (var i = 1; i < len; i++)
camelized += parts[i].charAt(0).toUpperCase() + parts[i].substring(1);
return camelized;
},
capitalize: function() {
return this.charAt(0).toUpperCase() + this.substring(1).toLowerCase();
},
underscore: function() {
return this.gsub(/::/, '/').gsub(/([A-Z]+)([A-Z][a-z])/,'#{1}_#{2}').gsub(/([a-z\d])([A-Z])/,'#{1}_#{2}').gsub(/-/,'_').toLowerCase();
},
dasherize: function() {
return this.gsub(/_/,'-');
},
inspect: function(useDoubleQuotes) {
var escapedString = this.gsub(/[\x00-\x1f\\]/, function(match) {
var character = String.specialChar[match[0]];
return character ? character : '\\u00' + match[0].charCodeAt().toPaddedString(2, 16);
});
if (useDoubleQuotes) return '"' + escapedString.replace(/"/g, '\\"') + '"';
return "'" + escapedString.replace(/'/g, '\\\'') + "'";
},
toJSON: function() {
return this.inspect(true);
},
unfilterJSON: function(filter) {
return this.sub(filter || Prototype.JSONFilter, '#{1}');
},
isJSON: function() {
var str = this;
if (str.blank()) return false;
str = this.replace(/\\./g, '@').replace(/"[^"\\\n\r]*"/g, '');
return (/^[,:{}\[\]0-9.\-+Eaeflnr-u \n\r\t]*$/).test(str);
},
evalJSON: function(sanitize) {
var json = this.unfilterJSON();
try {
if (!sanitize || json.isJSON()) return eval('(' + json + ')');
} catch (e) { }
throw new SyntaxError('Badly formed JSON string: ' + this.inspect());
},
include: function(pattern) {
return this.indexOf(pattern) > -1;
},
startsWith: function(pattern) {
return this.indexOf(pattern) === 0;
},
endsWith: function(pattern) {
var d = this.length - pattern.length;
return d >= 0 && this.lastIndexOf(pattern) === d;
},
empty: function() {
return this == '';
},
blank: function() {
return /^\s*$/.test(this);
},
interpolate: function(object, pattern) {
return new Template(this, pattern).evaluate(object);
}
});
if (Prototype.Browser.WebKit || Prototype.Browser.IE) Object.extend(String.prototype, {
escapeHTML: function() {
return this.replace(/&/g,'&').replace(//g,'>');
},
unescapeHTML: function() {
return this.stripTags().replace(/&/g,'&').replace(/</g,'<').replace(/>/g,'>');
}
});
String.prototype.gsub.prepareReplacement = function(replacement) {
if (Object.isFunction(replacement)) return replacement;
var template = new Template(replacement);
return function(match) { return template.evaluate(match) };
};
String.prototype.parseQuery = String.prototype.toQueryParams;
Object.extend(String.prototype.escapeHTML, {
div: document.createElement('div'),
text: document.createTextNode('')
});
String.prototype.escapeHTML.div.appendChild(String.prototype.escapeHTML.text);
var Template = Class.create({
initialize: function(template, pattern) {
this.template = template.toString();
this.pattern = pattern || Template.Pattern;
},
evaluate: function(object) {
if (Object.isFunction(object.toTemplateReplacements))
object = object.toTemplateReplacements();
return this.template.gsub(this.pattern, function(match) {
if (object == null) return '';
var before = match[1] || '';
if (before == '\\') return match[2];
var ctx = object, expr = match[3];
var pattern = /^([^.[]+|\[((?:.*?[^\\])?)\])(\.|\[|$)/;
match = pattern.exec(expr);
if (match == null) return before;
while (match != null) {
var comp = match[1].startsWith('[') ? match[2].gsub('\\\\]', ']') : match[1];
ctx = ctx[comp];
if (null == ctx || '' == match[3]) break;
expr = expr.substring('[' == match[3] ? match[1].length : match[0].length);
match = pattern.exec(expr);
}
return before + String.interpret(ctx);
});
}
});
Template.Pattern = /(^|.|\r|\n)(#\{(.*?)\})/;
var $break = { };
var Enumerable = {
each: function(iterator, context) {
var index = 0;
try {
this._each(function(value) {
iterator.call(context, value, index++);
});
} catch (e) {
if (e != $break) throw e;
}
return this;
},
eachSlice: function(number, iterator, context) {
var index = -number, slices = [], array = this.toArray();
if (number < 1) return array;
while ((index += number) < array.length)
slices.push(array.slice(index, index+number));
return slices.collect(iterator, context);
},
all: function(iterator, context) {
iterator = iterator || Prototype.K;
var result = true;
this.each(function(value, index) {
result = result && !!iterator.call(context, value, index);
if (!result) throw $break;
});
return result;
},
any: function(iterator, context) {
iterator = iterator || Prototype.K;
var result = false;
this.each(function(value, index) {
if (result = !!iterator.call(context, value, index))
throw $break;
});
return result;
},
collect: function(iterator, context) {
iterator = iterator || Prototype.K;
var results = [];
this.each(function(value, index) {
results.push(iterator.call(context, value, index));
});
return results;
},
detect: function(iterator, context) {
var result;
this.each(function(value, index) {
if (iterator.call(context, value, index)) {
result = value;
throw $break;
}
});
return result;
},
findAll: function(iterator, context) {
var results = [];
this.each(function(value, index) {
if (iterator.call(context, value, index))
results.push(value);
});
return results;
},
grep: function(filter, iterator, context) {
iterator = iterator || Prototype.K;
var results = [];
if (Object.isString(filter))
filter = new RegExp(filter);
this.each(function(value, index) {
if (filter.match(value))
results.push(iterator.call(context, value, index));
});
return results;
},
include: function(object) {
if (Object.isFunction(this.indexOf))
if (this.indexOf(object) != -1) return true;
var found = false;
this.each(function(value) {
if (value == object) {
found = true;
throw $break;
}
});
return found;
},
inGroupsOf: function(number, fillWith) {
fillWith = Object.isUndefined(fillWith) ? null : fillWith;
return this.eachSlice(number, function(slice) {
while(slice.length < number) slice.push(fillWith);
return slice;
});
},
inject: function(memo, iterator, context) {
this.each(function(value, index) {
memo = iterator.call(context, memo, value, index);
});
return memo;
},
invoke: function(method) {
var args = $A(arguments).slice(1);
return this.map(function(value) {
return value[method].apply(value, args);
});
},
max: function(iterator, context) {
iterator = iterator || Prototype.K;
var result;
this.each(function(value, index) {
value = iterator.call(context, value, index);
if (result == null || value >= result)
result = value;
});
return result;
},
min: function(iterator, context) {
iterator = iterator || Prototype.K;
var result;
this.each(function(value, index) {
value = iterator.call(context, value, index);
if (result == null || value < result)
result = value;
});
return result;
},
partition: function(iterator, context) {
iterator = iterator || Prototype.K;
var trues = [], falses = [];
this.each(function(value, index) {
(iterator.call(context, value, index) ?
trues : falses).push(value);
});
return [trues, falses];
},
pluck: function(property) {
var results = [];
this.each(function(value) {
results.push(value[property]);
});
return results;
},
reject: function(iterator, context) {
var results = [];
this.each(function(value, index) {
if (!iterator.call(context, value, index))
results.push(value);
});
return results;
},
sortBy: function(iterator, context) {
return this.map(function(value, index) {
return {
value: value,
criteria: iterator.call(context, value, index)
};
}).sort(function(left, right) {
var a = left.criteria, b = right.criteria;
return a < b ? -1 : a > b ? 1 : 0;
}).pluck('value');
},
toArray: function() {
return this.map();
},
zip: function() {
var iterator = Prototype.K, args = $A(arguments);
if (Object.isFunction(args.last()))
iterator = args.pop();
var collections = [this].concat(args).map($A);
return this.map(function(value, index) {
return iterator(collections.pluck(index));
});
},
size: function() {
return this.toArray().length;
},
inspect: function() {
return '#';
}
};
Object.extend(Enumerable, {
map: Enumerable.collect,
find: Enumerable.detect,
select: Enumerable.findAll,
filter: Enumerable.findAll,
member: Enumerable.include,
entries: Enumerable.toArray,
every: Enumerable.all,
some: Enumerable.any
});
function $A(iterable) {
if (!iterable) return [];
if (iterable.toArray) return iterable.toArray();
var length = iterable.length || 0, results = new Array(length);
while (length--) results[length] = iterable[length];
return results;
}
if (Prototype.Browser.WebKit) {
$A = function(iterable) {
if (!iterable) return [];
// In Safari, only use the `toArray` method if it's not a NodeList.
// A NodeList is a function, has an function `item` property, and a numeric
// `length` property. Adapted from Google Doctype.
if (!(typeof iterable === 'function' && typeof iterable.length ===
'number' && typeof iterable.item === 'function') && iterable.toArray)
return iterable.toArray();
var length = iterable.length || 0, results = new Array(length);
while (length--) results[length] = iterable[length];
return results;
};
}
Array.from = $A;
Object.extend(Array.prototype, Enumerable);
if (!Array.prototype._reverse) Array.prototype._reverse = Array.prototype.reverse;
Object.extend(Array.prototype, {
_each: function(iterator) {
for (var i = 0, length = this.length; i < length; i++)
iterator(this[i]);
},
clear: function() {
this.length = 0;
return this;
},
first: function() {
return this[0];
},
last: function() {
return this[this.length - 1];
},
compact: function() {
return this.select(function(value) {
return value != null;
});
},
flatten: function() {
return this.inject([], function(array, value) {
return array.concat(Object.isArray(value) ?
value.flatten() : [value]);
});
},
without: function() {
var values = $A(arguments);
return this.select(function(value) {
return !values.include(value);
});
},
reverse: function(inline) {
return (inline !== false ? this : this.toArray())._reverse();
},
reduce: function() {
return this.length > 1 ? this : this[0];
},
uniq: function(sorted) {
return this.inject([], function(array, value, index) {
if (0 == index || (sorted ? array.last() != value : !array.include(value)))
array.push(value);
return array;
});
},
intersect: function(array) {
return this.uniq().findAll(function(item) {
return array.detect(function(value) { return item === value });
});
},
clone: function() {
return [].concat(this);
},
size: function() {
return this.length;
},
inspect: function() {
return '[' + this.map(Object.inspect).join(', ') + ']';
},
toJSON: function() {
var results = [];
this.each(function(object) {
var value = Object.toJSON(object);
if (!Object.isUndefined(value)) results.push(value);
});
return '[' + results.join(', ') + ']';
}
});
// use native browser JS 1.6 implementation if available
if (Object.isFunction(Array.prototype.forEach))
Array.prototype._each = Array.prototype.forEach;
if (!Array.prototype.indexOf) Array.prototype.indexOf = function(item, i) {
i || (i = 0);
var length = this.length;
if (i < 0) i = length + i;
for (; i < length; i++)
if (this[i] === item) return i;
return -1;
};
if (!Array.prototype.lastIndexOf) Array.prototype.lastIndexOf = function(item, i) {
i = isNaN(i) ? this.length : (i < 0 ? this.length + i : i) + 1;
var n = this.slice(0, i).reverse().indexOf(item);
return (n < 0) ? n : i - n - 1;
};
Array.prototype.toArray = Array.prototype.clone;
function $w(string) {
if (!Object.isString(string)) return [];
string = string.strip();
return string ? string.split(/\s+/) : [];
}
if (Prototype.Browser.Opera){
Array.prototype.concat = function() {
var array = [];
for (var i = 0, length = this.length; i < length; i++) array.push(this[i]);
for (var i = 0, length = arguments.length; i < length; i++) {
if (Object.isArray(arguments[i])) {
for (var j = 0, arrayLength = arguments[i].length; j < arrayLength; j++)
array.push(arguments[i][j]);
} else {
array.push(arguments[i]);
}
}
return array;
};
}
Object.extend(Number.prototype, {
toColorPart: function() {
return this.toPaddedString(2, 16);
},
succ: function() {
return this + 1;
},
times: function(iterator, context) {
$R(0, this, true).each(iterator, context);
return this;
},
toPaddedString: function(length, radix) {
var string = this.toString(radix || 10);
return '0'.times(length - string.length) + string;
},
toJSON: function() {
return isFinite(this) ? this.toString() : 'null';
}
});
$w('abs round ceil floor').each(function(method){
Number.prototype[method] = Math[method].methodize();
});
function $H(object) {
return new Hash(object);
};
var Hash = Class.create(Enumerable, (function() {
function toQueryPair(key, value) {
if (Object.isUndefined(value)) return key;
return key + '=' + encodeURIComponent(String.interpret(value));
}
return {
initialize: function(object) {
this._object = Object.isHash(object) ? object.toObject() : Object.clone(object);
},
_each: function(iterator) {
for (var key in this._object) {
var value = this._object[key], pair = [key, value];
pair.key = key;
pair.value = value;
iterator(pair);
}
},
set: function(key, value) {
return this._object[key] = value;
},
get: function(key) {
// simulating poorly supported hasOwnProperty
if (this._object[key] !== Object.prototype[key])
return this._object[key];
},
unset: function(key) {
var value = this._object[key];
delete this._object[key];
return value;
},
toObject: function() {
return Object.clone(this._object);
},
keys: function() {
return this.pluck('key');
},
values: function() {
return this.pluck('value');
},
index: function(value) {
var match = this.detect(function(pair) {
return pair.value === value;
});
return match && match.key;
},
merge: function(object) {
return this.clone().update(object);
},
update: function(object) {
return new Hash(object).inject(this, function(result, pair) {
result.set(pair.key, pair.value);
return result;
});
},
toQueryString: function() {
return this.inject([], function(results, pair) {
var key = encodeURIComponent(pair.key), values = pair.value;
if (values && typeof values == 'object') {
if (Object.isArray(values))
return results.concat(values.map(toQueryPair.curry(key)));
} else results.push(toQueryPair(key, values));
return results;
}).join('&');
},
inspect: function() {
return '#';
},
toJSON: function() {
return Object.toJSON(this.toObject());
},
clone: function() {
return new Hash(this);
}
}
})());
Hash.prototype.toTemplateReplacements = Hash.prototype.toObject;
Hash.from = $H;
var ObjectRange = Class.create(Enumerable, {
initialize: function(start, end, exclusive) {
this.start = start;
this.end = end;
this.exclusive = exclusive;
},
_each: function(iterator) {
var value = this.start;
while (this.include(value)) {
iterator(value);
value = value.succ();
}
},
include: function(value) {
if (value < this.start)
return false;
if (this.exclusive)
return value < this.end;
return value <= this.end;
}
});
var $R = function(start, end, exclusive) {
return new ObjectRange(start, end, exclusive);
};
var Ajax = {
getTransport: function() {
return Try.these(
function() {return new XMLHttpRequest()},
function() {return new ActiveXObject('Msxml2.XMLHTTP')},
function() {return new ActiveXObject('Microsoft.XMLHTTP')}
) || false;
},
activeRequestCount: 0
};
Ajax.Responders = {
responders: [],
_each: function(iterator) {
this.responders._each(iterator);
},
register: function(responder) {
if (!this.include(responder))
this.responders.push(responder);
},
unregister: function(responder) {
this.responders = this.responders.without(responder);
},
dispatch: function(callback, request, transport, json) {
this.each(function(responder) {
if (Object.isFunction(responder[callback])) {
try {
responder[callback].apply(responder, [request, transport, json]);
} catch (e) { }
}
});
}
};
Object.extend(Ajax.Responders, Enumerable);
Ajax.Responders.register({
onCreate: function() { Ajax.activeRequestCount++ },
onComplete: function() { Ajax.activeRequestCount-- }
});
Ajax.Base = Class.create({
initialize: function(options) {
this.options = {
method: 'post',
asynchronous: true,
contentType: 'application/x-www-form-urlencoded',
encoding: 'UTF-8',
parameters: '',
evalJSON: true,
evalJS: true
};
Object.extend(this.options, options || { });
this.options.method = this.options.method.toLowerCase();
if (Object.isString(this.options.parameters))
this.options.parameters = this.options.parameters.toQueryParams();
else if (Object.isHash(this.options.parameters))
this.options.parameters = this.options.parameters.toObject();
}
});
Ajax.Request = Class.create(Ajax.Base, {
_complete: false,
initialize: function($super, url, options) {
$super(options);
this.transport = Ajax.getTransport();
this.request(url);
},
request: function(url) {
this.url = url;
this.method = this.options.method;
var params = Object.clone(this.options.parameters);
if (!['get', 'post'].include(this.method)) {
// simulate other verbs over post
params['_method'] = this.method;
this.method = 'post';
}
this.parameters = params;
if (params = Object.toQueryString(params)) {
// when GET, append parameters to URL
if (this.method == 'get')
this.url += (this.url.include('?') ? '&' : '?') + params;
else if (/Konqueror|Safari|KHTML/.test(navigator.userAgent))
params += '&_=';
}
try {
var response = new Ajax.Response(this);
if (this.options.onCreate) this.options.onCreate(response);
Ajax.Responders.dispatch('onCreate', this, response);
this.transport.open(this.method.toUpperCase(), this.url,
this.options.asynchronous);
if (this.options.asynchronous) this.respondToReadyState.bind(this).defer(1);
this.transport.onreadystatechange = this.onStateChange.bind(this);
this.setRequestHeaders();
this.body = this.method == 'post' ? (this.options.postBody || params) : null;
this.transport.send(this.body);
/* Force Firefox to handle ready state 4 for synchronous requests */
if (!this.options.asynchronous && this.transport.overrideMimeType)
this.onStateChange();
}
catch (e) {
this.dispatchException(e);
}
},
onStateChange: function() {
var readyState = this.transport.readyState;
if (readyState > 1 && !((readyState == 4) && this._complete))
this.respondToReadyState(this.transport.readyState);
},
setRequestHeaders: function() {
var headers = {
'X-Requested-With': 'XMLHttpRequest',
'X-Prototype-Version': Prototype.Version,
'Accept': 'text/javascript, text/html, application/xml, text/xml, */*'
};
if (this.method == 'post') {
headers['Content-type'] = this.options.contentType +
(this.options.encoding ? '; charset=' + this.options.encoding : '');
/* Force "Connection: close" for older Mozilla browsers to work
* around a bug where XMLHttpRequest sends an incorrect
* Content-length header. See Mozilla Bugzilla #246651.
*/
if (this.transport.overrideMimeType &&
(navigator.userAgent.match(/Gecko\/(\d{4})/) || [0,2005])[1] < 2005)
headers['Connection'] = 'close';
}
// user-defined headers
if (typeof this.options.requestHeaders == 'object') {
var extras = this.options.requestHeaders;
if (Object.isFunction(extras.push))
for (var i = 0, length = extras.length; i < length; i += 2)
headers[extras[i]] = extras[i+1];
else
$H(extras).each(function(pair) { headers[pair.key] = pair.value });
}
for (var name in headers)
this.transport.setRequestHeader(name, headers[name]);
},
success: function() {
var status = this.getStatus();
return !status || (status >= 200 && status < 300);
},
getStatus: function() {
try {
return this.transport.status || 0;
} catch (e) { return 0 }
},
respondToReadyState: function(readyState) {
var state = Ajax.Request.Events[readyState], response = new Ajax.Response(this);
if (state == 'Complete') {
try {
this._complete = true;
(this.options['on' + response.status]
|| this.options['on' + (this.success() ? 'Success' : 'Failure')]
|| Prototype.emptyFunction)(response, response.headerJSON);
} catch (e) {
this.dispatchException(e);
}
var contentType = response.getHeader('Content-type');
if (this.options.evalJS == 'force'
|| (this.options.evalJS && this.isSameOrigin() && contentType
&& contentType.match(/^\s*(text|application)\/(x-)?(java|ecma)script(;.*)?\s*$/i)))
this.evalResponse();
}
try {
(this.options['on' + state] || Prototype.emptyFunction)(response, response.headerJSON);
Ajax.Responders.dispatch('on' + state, this, response, response.headerJSON);
} catch (e) {
this.dispatchException(e);
}
if (state == 'Complete') {
// avoid memory leak in MSIE: clean up
this.transport.onreadystatechange = Prototype.emptyFunction;
}
},
isSameOrigin: function() {
var m = this.url.match(/^\s*https?:\/\/[^\/]*/);
return !m || (m[0] == '#{protocol}//#{domain}#{port}'.interpolate({
protocol: location.protocol,
domain: document.domain,
port: location.port ? ':' + location.port : ''
}));
},
getHeader: function(name) {
try {
return this.transport.getResponseHeader(name) || null;
} catch (e) { return null }
},
evalResponse: function() {
try {
return eval((this.transport.responseText || '').unfilterJSON());
} catch (e) {
this.dispatchException(e);
}
},
dispatchException: function(exception) {
(this.options.onException || Prototype.emptyFunction)(this, exception);
Ajax.Responders.dispatch('onException', this, exception);
}
});
Ajax.Request.Events =
['Uninitialized', 'Loading', 'Loaded', 'Interactive', 'Complete'];
Ajax.Response = Class.create({
initialize: function(request){
this.request = request;
var transport = this.transport = request.transport,
readyState = this.readyState = transport.readyState;
if((readyState > 2 && !Prototype.Browser.IE) || readyState == 4) {
this.status = this.getStatus();
this.statusText = this.getStatusText();
this.responseText = String.interpret(transport.responseText);
this.headerJSON = this._getHeaderJSON();
}
if(readyState == 4) {
var xml = transport.responseXML;
this.responseXML = Object.isUndefined(xml) ? null : xml;
this.responseJSON = this._getResponseJSON();
}
},
status: 0,
statusText: '',
getStatus: Ajax.Request.prototype.getStatus,
getStatusText: function() {
try {
return this.transport.statusText || '';
} catch (e) { return '' }
},
getHeader: Ajax.Request.prototype.getHeader,
getAllHeaders: function() {
try {
return this.getAllResponseHeaders();
} catch (e) { return null }
},
getResponseHeader: function(name) {
return this.transport.getResponseHeader(name);
},
getAllResponseHeaders: function() {
return this.transport.getAllResponseHeaders();
},
_getHeaderJSON: function() {
var json = this.getHeader('X-JSON');
if (!json) return null;
json = decodeURIComponent(escape(json));
try {
return json.evalJSON(this.request.options.sanitizeJSON ||
!this.request.isSameOrigin());
} catch (e) {
this.request.dispatchException(e);
}
},
_getResponseJSON: function() {
var options = this.request.options;
if (!options.evalJSON || (options.evalJSON != 'force' &&
!(this.getHeader('Content-type') || '').include('application/json')) ||
this.responseText.blank())
return null;
try {
return this.responseText.evalJSON(options.sanitizeJSON ||
!this.request.isSameOrigin());
} catch (e) {
this.request.dispatchException(e);
}
}
});
Ajax.Updater = Class.create(Ajax.Request, {
initialize: function($super, container, url, options) {
this.container = {
success: (container.success || container),
failure: (container.failure || (container.success ? null : container))
};
options = Object.clone(options);
var onComplete = options.onComplete;
options.onComplete = (function(response, json) {
this.updateContent(response.responseText);
if (Object.isFunction(onComplete)) onComplete(response, json);
}).bind(this);
$super(url, options);
},
updateContent: function(responseText) {
var receiver = this.container[this.success() ? 'success' : 'failure'],
options = this.options;
if (!options.evalScripts) responseText = responseText.stripScripts();
if (receiver = $(receiver)) {
if (options.insertion) {
if (Object.isString(options.insertion)) {
var insertion = { }; insertion[options.insertion] = responseText;
receiver.insert(insertion);
}
else options.insertion(receiver, responseText);
}
else receiver.update(responseText);
}
}
});
Ajax.PeriodicalUpdater = Class.create(Ajax.Base, {
initialize: function($super, container, url, options) {
$super(options);
this.onComplete = this.options.onComplete;
this.frequency = (this.options.frequency || 2);
this.decay = (this.options.decay || 1);
this.updater = { };
this.container = container;
this.url = url;
this.start();
},
start: function() {
this.options.onComplete = this.updateComplete.bind(this);
this.onTimerEvent();
},
stop: function() {
this.updater.options.onComplete = undefined;
clearTimeout(this.timer);
(this.onComplete || Prototype.emptyFunction).apply(this, arguments);
},
updateComplete: function(response) {
if (this.options.decay) {
this.decay = (response.responseText == this.lastText ?
this.decay * this.options.decay : 1);
this.lastText = response.responseText;
}
this.timer = this.onTimerEvent.bind(this).delay(this.decay * this.frequency);
},
onTimerEvent: function() {
this.updater = new Ajax.Updater(this.container, this.url, this.options);
}
});
function $(element) {
if (arguments.length > 1) {
for (var i = 0, elements = [], length = arguments.length; i < length; i++)
elements.push($(arguments[i]));
return elements;
}
if (Object.isString(element))
element = document.getElementById(element);
return Element.extend(element);
}
if (Prototype.BrowserFeatures.XPath) {
document._getElementsByXPath = function(expression, parentElement) {
var results = [];
var query = document.evaluate(expression, $(parentElement) || document,
null, XPathResult.ORDERED_NODE_SNAPSHOT_TYPE, null);
for (var i = 0, length = query.snapshotLength; i < length; i++)
results.push(Element.extend(query.snapshotItem(i)));
return results;
};
}
/*--------------------------------------------------------------------------*/
if (!window.Node) var Node = { };
if (!Node.ELEMENT_NODE) {
// DOM level 2 ECMAScript Language Binding
Object.extend(Node, {
ELEMENT_NODE: 1,
ATTRIBUTE_NODE: 2,
TEXT_NODE: 3,
CDATA_SECTION_NODE: 4,
ENTITY_REFERENCE_NODE: 5,
ENTITY_NODE: 6,
PROCESSING_INSTRUCTION_NODE: 7,
COMMENT_NODE: 8,
DOCUMENT_NODE: 9,
DOCUMENT_TYPE_NODE: 10,
DOCUMENT_FRAGMENT_NODE: 11,
NOTATION_NODE: 12
});
}
(function() {
var element = this.Element;
this.Element = function(tagName, attributes) {
attributes = attributes || { };
tagName = tagName.toLowerCase();
var cache = Element.cache;
if (Prototype.Browser.IE && attributes.name) {
tagName = '<' + tagName + ' name="' + attributes.name + '">';
delete attributes.name;
return Element.writeAttribute(document.createElement(tagName), attributes);
}
if (!cache[tagName]) cache[tagName] = Element.extend(document.createElement(tagName));
return Element.writeAttribute(cache[tagName].cloneNode(false), attributes);
};
Object.extend(this.Element, element || { });
if (element) this.Element.prototype = element.prototype;
}).call(window);
Element.cache = { };
Element.Methods = {
visible: function(element) {
return $(element).style.display != 'none';
},
toggle: function(element) {
element = $(element);
Element[Element.visible(element) ? 'hide' : 'show'](element);
return element;
},
hide: function(element) {
element = $(element);
element.style.display = 'none';
return element;
},
show: function(element) {
element = $(element);
element.style.display = '';
return element;
},
remove: function(element) {
element = $(element);
element.parentNode.removeChild(element);
return element;
},
update: function(element, content) {
element = $(element);
if (content && content.toElement) content = content.toElement();
if (Object.isElement(content)) return element.update().insert(content);
content = Object.toHTML(content);
element.innerHTML = content.stripScripts();
content.evalScripts.bind(content).defer();
return element;
},
replace: function(element, content) {
element = $(element);
if (content && content.toElement) content = content.toElement();
else if (!Object.isElement(content)) {
content = Object.toHTML(content);
var range = element.ownerDocument.createRange();
range.selectNode(element);
content.evalScripts.bind(content).defer();
content = range.createContextualFragment(content.stripScripts());
}
element.parentNode.replaceChild(content, element);
return element;
},
insert: function(element, insertions) {
element = $(element);
if (Object.isString(insertions) || Object.isNumber(insertions) ||
Object.isElement(insertions) || (insertions && (insertions.toElement || insertions.toHTML)))
insertions = {bottom:insertions};
var content, insert, tagName, childNodes;
for (var position in insertions) {
content = insertions[position];
position = position.toLowerCase();
insert = Element._insertionTranslations[position];
if (content && content.toElement) content = content.toElement();
if (Object.isElement(content)) {
insert(element, content);
continue;
}
content = Object.toHTML(content);
tagName = ((position == 'before' || position == 'after')
? element.parentNode : element).tagName.toUpperCase();
childNodes = Element._getContentFromAnonymousElement(tagName, content.stripScripts());
if (position == 'top' || position == 'after') childNodes.reverse();
childNodes.each(insert.curry(element));
content.evalScripts.bind(content).defer();
}
return element;
},
wrap: function(element, wrapper, attributes) {
element = $(element);
if (Object.isElement(wrapper))
$(wrapper).writeAttribute(attributes || { });
else if (Object.isString(wrapper)) wrapper = new Element(wrapper, attributes);
else wrapper = new Element('div', wrapper);
if (element.parentNode)
element.parentNode.replaceChild(wrapper, element);
wrapper.appendChild(element);
return wrapper;
},
inspect: function(element) {
element = $(element);
var result = '<' + element.tagName.toLowerCase();
$H({'id': 'id', 'className': 'class'}).each(function(pair) {
var property = pair.first(), attribute = pair.last();
var value = (element[property] || '').toString();
if (value) result += ' ' + attribute + '=' + value.inspect(true);
});
return result + '>';
},
recursivelyCollect: function(element, property) {
element = $(element);
var elements = [];
while (element = element[property])
if (element.nodeType == 1)
elements.push(Element.extend(element));
return elements;
},
ancestors: function(element) {
return $(element).recursivelyCollect('parentNode');
},
descendants: function(element) {
return $(element).select("*");
},
firstDescendant: function(element) {
element = $(element).firstChild;
while (element && element.nodeType != 1) element = element.nextSibling;
return $(element);
},
immediateDescendants: function(element) {
if (!(element = $(element).firstChild)) return [];
while (element && element.nodeType != 1) element = element.nextSibling;
if (element) return [element].concat($(element).nextSiblings());
return [];
},
previousSiblings: function(element) {
return $(element).recursivelyCollect('previousSibling');
},
nextSiblings: function(element) {
return $(element).recursivelyCollect('nextSibling');
},
siblings: function(element) {
element = $(element);
return element.previousSiblings().reverse().concat(element.nextSiblings());
},
match: function(element, selector) {
if (Object.isString(selector))
selector = new Selector(selector);
return selector.match($(element));
},
up: function(element, expression, index) {
element = $(element);
if (arguments.length == 1) return $(element.parentNode);
var ancestors = element.ancestors();
return Object.isNumber(expression) ? ancestors[expression] :
Selector.findElement(ancestors, expression, index);
},
down: function(element, expression, index) {
element = $(element);
if (arguments.length == 1) return element.firstDescendant();
return Object.isNumber(expression) ? element.descendants()[expression] :
Element.select(element, expression)[index || 0];
},
previous: function(element, expression, index) {
element = $(element);
if (arguments.length == 1) return $(Selector.handlers.previousElementSibling(element));
var previousSiblings = element.previousSiblings();
return Object.isNumber(expression) ? previousSiblings[expression] :
Selector.findElement(previousSiblings, expression, index);
},
next: function(element, expression, index) {
element = $(element);
if (arguments.length == 1) return $(Selector.handlers.nextElementSibling(element));
var nextSiblings = element.nextSiblings();
return Object.isNumber(expression) ? nextSiblings[expression] :
Selector.findElement(nextSiblings, expression, index);
},
select: function() {
var args = $A(arguments), element = $(args.shift());
return Selector.findChildElements(element, args);
},
adjacent: function() {
var args = $A(arguments), element = $(args.shift());
return Selector.findChildElements(element.parentNode, args).without(element);
},
identify: function(element) {
element = $(element);
var id = element.readAttribute('id'), self = arguments.callee;
if (id) return id;
do { id = 'anonymous_element_' + self.counter++ } while ($(id));
element.writeAttribute('id', id);
return id;
},
readAttribute: function(element, name) {
element = $(element);
if (Prototype.Browser.IE) {
var t = Element._attributeTranslations.read;
if (t.values[name]) return t.values[name](element, name);
if (t.names[name]) name = t.names[name];
if (name.include(':')) {
return (!element.attributes || !element.attributes[name]) ? null :
element.attributes[name].value;
}
}
return element.getAttribute(name);
},
writeAttribute: function(element, name, value) {
element = $(element);
var attributes = { }, t = Element._attributeTranslations.write;
if (typeof name == 'object') attributes = name;
else attributes[name] = Object.isUndefined(value) ? true : value;
for (var attr in attributes) {
name = t.names[attr] || attr;
value = attributes[attr];
if (t.values[attr]) name = t.values[attr](element, value);
if (value === false || value === null)
element.removeAttribute(name);
else if (value === true)
element.setAttribute(name, name);
else element.setAttribute(name, value);
}
return element;
},
getHeight: function(element) {
return $(element).getDimensions().height;
},
getWidth: function(element) {
return $(element).getDimensions().width;
},
classNames: function(element) {
return new Element.ClassNames(element);
},
hasClassName: function(element, className) {
if (!(element = $(element))) return;
var elementClassName = element.className;
return (elementClassName.length > 0 && (elementClassName == className ||
new RegExp("(^|\\s)" + className + "(\\s|$)").test(elementClassName)));
},
addClassName: function(element, className) {
if (!(element = $(element))) return;
if (!element.hasClassName(className))
element.className += (element.className ? ' ' : '') + className;
return element;
},
removeClassName: function(element, className) {
if (!(element = $(element))) return;
element.className = element.className.replace(
new RegExp("(^|\\s+)" + className + "(\\s+|$)"), ' ').strip();
return element;
},
toggleClassName: function(element, className) {
if (!(element = $(element))) return;
return element[element.hasClassName(className) ?
'removeClassName' : 'addClassName'](className);
},
// removes whitespace-only text node children
cleanWhitespace: function(element) {
element = $(element);
var node = element.firstChild;
while (node) {
var nextNode = node.nextSibling;
if (node.nodeType == 3 && !/\S/.test(node.nodeValue))
element.removeChild(node);
node = nextNode;
}
return element;
},
empty: function(element) {
return $(element).innerHTML.blank();
},
descendantOf: function(element, ancestor) {
element = $(element), ancestor = $(ancestor);
if (element.compareDocumentPosition)
return (element.compareDocumentPosition(ancestor) & 8) === 8;
if (ancestor.contains)
return ancestor.contains(element) && ancestor !== element;
while (element = element.parentNode)
if (element == ancestor) return true;
return false;
},
scrollTo: function(element) {
element = $(element);
var pos = element.cumulativeOffset();
window.scrollTo(pos[0], pos[1]);
return element;
},
getStyle: function(element, style) {
element = $(element);
style = style == 'float' ? 'cssFloat' : style.camelize();
var value = element.style[style];
if (!value || value == 'auto') {
var css = document.defaultView.getComputedStyle(element, null);
value = css ? css[style] : null;
}
if (style == 'opacity') return value ? parseFloat(value) : 1.0;
return value == 'auto' ? null : value;
},
getOpacity: function(element) {
return $(element).getStyle('opacity');
},
setStyle: function(element, styles) {
element = $(element);
var elementStyle = element.style, match;
if (Object.isString(styles)) {
element.style.cssText += ';' + styles;
return styles.include('opacity') ?
element.setOpacity(styles.match(/opacity:\s*(\d?\.?\d*)/)[1]) : element;
}
for (var property in styles)
if (property == 'opacity') element.setOpacity(styles[property]);
else
elementStyle[(property == 'float' || property == 'cssFloat') ?
(Object.isUndefined(elementStyle.styleFloat) ? 'cssFloat' : 'styleFloat') :
property] = styles[property];
return element;
},
setOpacity: function(element, value) {
element = $(element);
element.style.opacity = (value == 1 || value === '') ? '' :
(value < 0.00001) ? 0 : value;
return element;
},
getDimensions: function(element) {
element = $(element);
var display = element.getStyle('display');
if (display != 'none' && display != null) // Safari bug
return {width: element.offsetWidth, height: element.offsetHeight};
// All *Width and *Height properties give 0 on elements with display none,
// so enable the element temporarily
var els = element.style;
var originalVisibility = els.visibility;
var originalPosition = els.position;
var originalDisplay = els.display;
els.visibility = 'hidden';
els.position = 'absolute';
els.display = 'block';
var originalWidth = element.clientWidth;
var originalHeight = element.clientHeight;
els.display = originalDisplay;
els.position = originalPosition;
els.visibility = originalVisibility;
return {width: originalWidth, height: originalHeight};
},
makePositioned: function(element) {
element = $(element);
var pos = Element.getStyle(element, 'position');
if (pos == 'static' || !pos) {
element._madePositioned = true;
element.style.position = 'relative';
// Opera returns the offset relative to the positioning context, when an
// element is position relative but top and left have not been defined
if (Prototype.Browser.Opera) {
element.style.top = 0;
element.style.left = 0;
}
}
return element;
},
undoPositioned: function(element) {
element = $(element);
if (element._madePositioned) {
element._madePositioned = undefined;
element.style.position =
element.style.top =
element.style.left =
element.style.bottom =
element.style.right = '';
}
return element;
},
makeClipping: function(element) {
element = $(element);
if (element._overflow) return element;
element._overflow = Element.getStyle(element, 'overflow') || 'auto';
if (element._overflow !== 'hidden')
element.style.overflow = 'hidden';
return element;
},
undoClipping: function(element) {
element = $(element);
if (!element._overflow) return element;
element.style.overflow = element._overflow == 'auto' ? '' : element._overflow;
element._overflow = null;
return element;
},
cumulativeOffset: function(element) {
var valueT = 0, valueL = 0;
do {
valueT += element.offsetTop || 0;
valueL += element.offsetLeft || 0;
element = element.offsetParent;
} while (element);
return Element._returnOffset(valueL, valueT);
},
positionedOffset: function(element) {
var valueT = 0, valueL = 0;
do {
valueT += element.offsetTop || 0;
valueL += element.offsetLeft || 0;
element = element.offsetParent;
if (element) {
if (element.tagName.toUpperCase() == 'BODY') break;
var p = Element.getStyle(element, 'position');
if (p !== 'static') break;
}
} while (element);
return Element._returnOffset(valueL, valueT);
},
absolutize: function(element) {
element = $(element);
if (element.getStyle('position') == 'absolute') return element;
// Position.prepare(); // To be done manually by Scripty when it needs it.
var offsets = element.positionedOffset();
var top = offsets[1];
var left = offsets[0];
var width = element.clientWidth;
var height = element.clientHeight;
element._originalLeft = left - parseFloat(element.style.left || 0);
element._originalTop = top - parseFloat(element.style.top || 0);
element._originalWidth = element.style.width;
element._originalHeight = element.style.height;
element.style.position = 'absolute';
element.style.top = top + 'px';
element.style.left = left + 'px';
element.style.width = width + 'px';
element.style.height = height + 'px';
return element;
},
relativize: function(element) {
element = $(element);
if (element.getStyle('position') == 'relative') return element;
// Position.prepare(); // To be done manually by Scripty when it needs it.
element.style.position = 'relative';
var top = parseFloat(element.style.top || 0) - (element._originalTop || 0);
var left = parseFloat(element.style.left || 0) - (element._originalLeft || 0);
element.style.top = top + 'px';
element.style.left = left + 'px';
element.style.height = element._originalHeight;
element.style.width = element._originalWidth;
return element;
},
cumulativeScrollOffset: function(element) {
var valueT = 0, valueL = 0;
do {
valueT += element.scrollTop || 0;
valueL += element.scrollLeft || 0;
element = element.parentNode;
} while (element);
return Element._returnOffset(valueL, valueT);
},
getOffsetParent: function(element) {
if (element.offsetParent) return $(element.offsetParent);
if (element == document.body) return $(element);
while ((element = element.parentNode) && element != document.body)
if (Element.getStyle(element, 'position') != 'static')
return $(element);
return $(document.body);
},
viewportOffset: function(forElement) {
var valueT = 0, valueL = 0;
var element = forElement;
do {
valueT += element.offsetTop || 0;
valueL += element.offsetLeft || 0;
// Safari fix
if (element.offsetParent == document.body &&
Element.getStyle(element, 'position') == 'absolute') break;
} while (element = element.offsetParent);
element = forElement;
do {
if (!Prototype.Browser.Opera || (element.tagName && (element.tagName.toUpperCase() == 'BODY'))) {
valueT -= element.scrollTop || 0;
valueL -= element.scrollLeft || 0;
}
} while (element = element.parentNode);
return Element._returnOffset(valueL, valueT);
},
clonePosition: function(element, source) {
var options = Object.extend({
setLeft: true,
setTop: true,
setWidth: true,
setHeight: true,
offsetTop: 0,
offsetLeft: 0
}, arguments[2] || { });
// find page position of source
source = $(source);
var p = source.viewportOffset();
// find coordinate system to use
element = $(element);
var delta = [0, 0];
var parent = null;
// delta [0,0] will do fine with position: fixed elements,
// position:absolute needs offsetParent deltas
if (Element.getStyle(element, 'position') == 'absolute') {
parent = element.getOffsetParent();
delta = parent.viewportOffset();
}
// correct by body offsets (fixes Safari)
if (parent == document.body) {
delta[0] -= document.body.offsetLeft;
delta[1] -= document.body.offsetTop;
}
// set position
if (options.setLeft) element.style.left = (p[0] - delta[0] + options.offsetLeft) + 'px';
if (options.setTop) element.style.top = (p[1] - delta[1] + options.offsetTop) + 'px';
if (options.setWidth) element.style.width = source.offsetWidth + 'px';
if (options.setHeight) element.style.height = source.offsetHeight + 'px';
return element;
}
};
Element.Methods.identify.counter = 1;
Object.extend(Element.Methods, {
getElementsBySelector: Element.Methods.select,
childElements: Element.Methods.immediateDescendants
});
Element._attributeTranslations = {
write: {
names: {
className: 'class',
htmlFor: 'for'
},
values: { }
}
};
if (Prototype.Browser.Opera) {
Element.Methods.getStyle = Element.Methods.getStyle.wrap(
function(proceed, element, style) {
switch (style) {
case 'left': case 'top': case 'right': case 'bottom':
if (proceed(element, 'position') === 'static') return null;
case 'height': case 'width':
// returns '0px' for hidden elements; we want it to return null
if (!Element.visible(element)) return null;
// returns the border-box dimensions rather than the content-box
// dimensions, so we subtract padding and borders from the value
var dim = parseInt(proceed(element, style), 10);
if (dim !== element['offset' + style.capitalize()])
return dim + 'px';
var properties;
if (style === 'height') {
properties = ['border-top-width', 'padding-top',
'padding-bottom', 'border-bottom-width'];
}
else {
properties = ['border-left-width', 'padding-left',
'padding-right', 'border-right-width'];
}
return properties.inject(dim, function(memo, property) {
var val = proceed(element, property);
return val === null ? memo : memo - parseInt(val, 10);
}) + 'px';
default: return proceed(element, style);
}
}
);
Element.Methods.readAttribute = Element.Methods.readAttribute.wrap(
function(proceed, element, attribute) {
if (attribute === 'title') return element.title;
return proceed(element, attribute);
}
);
}
else if (Prototype.Browser.IE) {
// IE doesn't report offsets correctly for static elements, so we change them
// to "relative" to get the values, then change them back.
Element.Methods.getOffsetParent = Element.Methods.getOffsetParent.wrap(
function(proceed, element) {
element = $(element);
// IE throws an error if element is not in document
try { element.offsetParent }
catch(e) { return $(document.body) }
var position = element.getStyle('position');
if (position !== 'static') return proceed(element);
element.setStyle({ position: 'relative' });
var value = proceed(element);
element.setStyle({ position: position });
return value;
}
);
$w('positionedOffset viewportOffset').each(function(method) {
Element.Methods[method] = Element.Methods[method].wrap(
function(proceed, element) {
element = $(element);
try { element.offsetParent }
catch(e) { return Element._returnOffset(0,0) }
var position = element.getStyle('position');
if (position !== 'static') return proceed(element);
// Trigger hasLayout on the offset parent so that IE6 reports
// accurate offsetTop and offsetLeft values for position: fixed.
var offsetParent = element.getOffsetParent();
if (offsetParent && offsetParent.getStyle('position') === 'fixed')
offsetParent.setStyle({ zoom: 1 });
element.setStyle({ position: 'relative' });
var value = proceed(element);
element.setStyle({ position: position });
return value;
}
);
});
Element.Methods.cumulativeOffset = Element.Methods.cumulativeOffset.wrap(
function(proceed, element) {
try { element.offsetParent }
catch(e) { return Element._returnOffset(0,0) }
return proceed(element);
}
);
Element.Methods.getStyle = function(element, style) {
element = $(element);
style = (style == 'float' || style == 'cssFloat') ? 'styleFloat' : style.camelize();
var value = element.style[style];
if (!value && element.currentStyle) value = element.currentStyle[style];
if (style == 'opacity') {
if (value = (element.getStyle('filter') || '').match(/alpha\(opacity=(.*)\)/))
if (value[1]) return parseFloat(value[1]) / 100;
return 1.0;
}
if (value == 'auto') {
if ((style == 'width' || style == 'height') && (element.getStyle('display') != 'none'))
return element['offset' + style.capitalize()] + 'px';
return null;
}
return value;
};
Element.Methods.setOpacity = function(element, value) {
function stripAlpha(filter){
return filter.replace(/alpha\([^\)]*\)/gi,'');
}
element = $(element);
var currentStyle = element.currentStyle;
if ((currentStyle && !currentStyle.hasLayout) ||
(!currentStyle && element.style.zoom == 'normal'))
element.style.zoom = 1;
var filter = element.getStyle('filter'), style = element.style;
if (value == 1 || value === '') {
(filter = stripAlpha(filter)) ?
style.filter = filter : style.removeAttribute('filter');
return element;
} else if (value < 0.00001) value = 0;
style.filter = stripAlpha(filter) +
'alpha(opacity=' + (value * 100) + ')';
return element;
};
Element._attributeTranslations = {
read: {
names: {
'class': 'className',
'for': 'htmlFor'
},
values: {
_getAttr: function(element, attribute) {
return element.getAttribute(attribute, 2);
},
_getAttrNode: function(element, attribute) {
var node = element.getAttributeNode(attribute);
return node ? node.value : "";
},
_getEv: function(element, attribute) {
attribute = element.getAttribute(attribute);
return attribute ? attribute.toString().slice(23, -2) : null;
},
_flag: function(element, attribute) {
return $(element).hasAttribute(attribute) ? attribute : null;
},
style: function(element) {
return element.style.cssText.toLowerCase();
},
title: function(element) {
return element.title;
}
}
}
};
Element._attributeTranslations.write = {
names: Object.extend({
cellpadding: 'cellPadding',
cellspacing: 'cellSpacing'
}, Element._attributeTranslations.read.names),
values: {
checked: function(element, value) {
element.checked = !!value;
},
style: function(element, value) {
element.style.cssText = value ? value : '';
}
}
};
Element._attributeTranslations.has = {};
$w('colSpan rowSpan vAlign dateTime accessKey tabIndex ' +
'encType maxLength readOnly longDesc frameBorder').each(function(attr) {
Element._attributeTranslations.write.names[attr.toLowerCase()] = attr;
Element._attributeTranslations.has[attr.toLowerCase()] = attr;
});
(function(v) {
Object.extend(v, {
href: v._getAttr,
src: v._getAttr,
type: v._getAttr,
action: v._getAttrNode,
disabled: v._flag,
checked: v._flag,
readonly: v._flag,
multiple: v._flag,
onload: v._getEv,
onunload: v._getEv,
onclick: v._getEv,
ondblclick: v._getEv,
onmousedown: v._getEv,
onmouseup: v._getEv,
onmouseover: v._getEv,
onmousemove: v._getEv,
onmouseout: v._getEv,
onfocus: v._getEv,
onblur: v._getEv,
onkeypress: v._getEv,
onkeydown: v._getEv,
onkeyup: v._getEv,
onsubmit: v._getEv,
onreset: v._getEv,
onselect: v._getEv,
onchange: v._getEv
});
})(Element._attributeTranslations.read.values);
}
else if (Prototype.Browser.Gecko && /rv:1\.8\.0/.test(navigator.userAgent)) {
Element.Methods.setOpacity = function(element, value) {
element = $(element);
element.style.opacity = (value == 1) ? 0.999999 :
(value === '') ? '' : (value < 0.00001) ? 0 : value;
return element;
};
}
else if (Prototype.Browser.WebKit) {
Element.Methods.setOpacity = function(element, value) {
element = $(element);
element.style.opacity = (value == 1 || value === '') ? '' :
(value < 0.00001) ? 0 : value;
if (value == 1)
if(element.tagName.toUpperCase() == 'IMG' && element.width) {
element.width++; element.width--;
} else try {
var n = document.createTextNode(' ');
element.appendChild(n);
element.removeChild(n);
} catch (e) { }
return element;
};
// Safari returns margins on body which is incorrect if the child is absolutely
// positioned. For performance reasons, redefine Element#cumulativeOffset for
// KHTML/WebKit only.
Element.Methods.cumulativeOffset = function(element) {
var valueT = 0, valueL = 0;
do {
valueT += element.offsetTop || 0;
valueL += element.offsetLeft || 0;
if (element.offsetParent == document.body)
if (Element.getStyle(element, 'position') == 'absolute') break;
element = element.offsetParent;
} while (element);
return Element._returnOffset(valueL, valueT);
};
}
if (Prototype.Browser.IE || Prototype.Browser.Opera) {
// IE and Opera are missing .innerHTML support for TABLE-related and SELECT elements
Element.Methods.update = function(element, content) {
element = $(element);
if (content && content.toElement) content = content.toElement();
if (Object.isElement(content)) return element.update().insert(content);
content = Object.toHTML(content);
var tagName = element.tagName.toUpperCase();
if (tagName in Element._insertionTranslations.tags) {
$A(element.childNodes).each(function(node) { element.removeChild(node) });
Element._getContentFromAnonymousElement(tagName, content.stripScripts())
.each(function(node) { element.appendChild(node) });
}
else element.innerHTML = content.stripScripts();
content.evalScripts.bind(content).defer();
return element;
};
}
if ('outerHTML' in document.createElement('div')) {
Element.Methods.replace = function(element, content) {
element = $(element);
if (content && content.toElement) content = content.toElement();
if (Object.isElement(content)) {
element.parentNode.replaceChild(content, element);
return element;
}
content = Object.toHTML(content);
var parent = element.parentNode, tagName = parent.tagName.toUpperCase();
if (Element._insertionTranslations.tags[tagName]) {
var nextSibling = element.next();
var fragments = Element._getContentFromAnonymousElement(tagName, content.stripScripts());
parent.removeChild(element);
if (nextSibling)
fragments.each(function(node) { parent.insertBefore(node, nextSibling) });
else
fragments.each(function(node) { parent.appendChild(node) });
}
else element.outerHTML = content.stripScripts();
content.evalScripts.bind(content).defer();
return element;
};
}
Element._returnOffset = function(l, t) {
var result = [l, t];
result.left = l;
result.top = t;
return result;
};
Element._getContentFromAnonymousElement = function(tagName, html) {
var div = new Element('div'), t = Element._insertionTranslations.tags[tagName];
if (t) {
div.innerHTML = t[0] + html + t[1];
t[2].times(function() { div = div.firstChild });
} else div.innerHTML = html;
return $A(div.childNodes);
};
Element._insertionTranslations = {
before: function(element, node) {
element.parentNode.insertBefore(node, element);
},
top: function(element, node) {
element.insertBefore(node, element.firstChild);
},
bottom: function(element, node) {
element.appendChild(node);
},
after: function(element, node) {
element.parentNode.insertBefore(node, element.nextSibling);
},
tags: {
TABLE: ['', 1],
TBODY: ['', 2],
TR: ['', 3],
TD: ['', 4],
SELECT: ['', 1]
}
};
(function() {
Object.extend(this.tags, {
THEAD: this.tags.TBODY,
TFOOT: this.tags.TBODY,
TH: this.tags.TD
});
}).call(Element._insertionTranslations);
Element.Methods.Simulated = {
hasAttribute: function(element, attribute) {
attribute = Element._attributeTranslations.has[attribute] || attribute;
var node = $(element).getAttributeNode(attribute);
return !!(node && node.specified);
}
};
Element.Methods.ByTag = { };
Object.extend(Element, Element.Methods);
if (!Prototype.BrowserFeatures.ElementExtensions &&
document.createElement('div')['__proto__']) {
window.HTMLElement = { };
window.HTMLElement.prototype = document.createElement('div')['__proto__'];
Prototype.BrowserFeatures.ElementExtensions = true;
}
Element.extend = (function() {
if (Prototype.BrowserFeatures.SpecificElementExtensions)
return Prototype.K;
var Methods = { }, ByTag = Element.Methods.ByTag;
var extend = Object.extend(function(element) {
if (!element || element._extendedByPrototype ||
element.nodeType != 1 || element == window) return element;
var methods = Object.clone(Methods),
tagName = element.tagName.toUpperCase(), property, value;
// extend methods for specific tags
if (ByTag[tagName]) Object.extend(methods, ByTag[tagName]);
for (property in methods) {
value = methods[property];
if (Object.isFunction(value) && !(property in element))
element[property] = value.methodize();
}
element._extendedByPrototype = Prototype.emptyFunction;
return element;
}, {
refresh: function() {
// extend methods for all tags (Safari doesn't need this)
if (!Prototype.BrowserFeatures.ElementExtensions) {
Object.extend(Methods, Element.Methods);
Object.extend(Methods, Element.Methods.Simulated);
}
}
});
extend.refresh();
return extend;
})();
Element.hasAttribute = function(element, attribute) {
if (element.hasAttribute) return element.hasAttribute(attribute);
return Element.Methods.Simulated.hasAttribute(element, attribute);
};
Element.addMethods = function(methods) {
var F = Prototype.BrowserFeatures, T = Element.Methods.ByTag;
if (!methods) {
Object.extend(Form, Form.Methods);
Object.extend(Form.Element, Form.Element.Methods);
Object.extend(Element.Methods.ByTag, {
"FORM": Object.clone(Form.Methods),
"INPUT": Object.clone(Form.Element.Methods),
"SELECT": Object.clone(Form.Element.Methods),
"TEXTAREA": Object.clone(Form.Element.Methods)
});
}
if (arguments.length == 2) {
var tagName = methods;
methods = arguments[1];
}
if (!tagName) Object.extend(Element.Methods, methods || { });
else {
if (Object.isArray(tagName)) tagName.each(extend);
else extend(tagName);
}
function extend(tagName) {
tagName = tagName.toUpperCase();
if (!Element.Methods.ByTag[tagName])
Element.Methods.ByTag[tagName] = { };
Object.extend(Element.Methods.ByTag[tagName], methods);
}
function copy(methods, destination, onlyIfAbsent) {
onlyIfAbsent = onlyIfAbsent || false;
for (var property in methods) {
var value = methods[property];
if (!Object.isFunction(value)) continue;
if (!onlyIfAbsent || !(property in destination))
destination[property] = value.methodize();
}
}
function findDOMClass(tagName) {
var klass;
var trans = {
"OPTGROUP": "OptGroup", "TEXTAREA": "TextArea", "P": "Paragraph",
"FIELDSET": "FieldSet", "UL": "UList", "OL": "OList", "DL": "DList",
"DIR": "Directory", "H1": "Heading", "H2": "Heading", "H3": "Heading",
"H4": "Heading", "H5": "Heading", "H6": "Heading", "Q": "Quote",
"INS": "Mod", "DEL": "Mod", "A": "Anchor", "IMG": "Image", "CAPTION":
"TableCaption", "COL": "TableCol", "COLGROUP": "TableCol", "THEAD":
"TableSection", "TFOOT": "TableSection", "TBODY": "TableSection", "TR":
"TableRow", "TH": "TableCell", "TD": "TableCell", "FRAMESET":
"FrameSet", "IFRAME": "IFrame"
};
if (trans[tagName]) klass = 'HTML' + trans[tagName] + 'Element';
if (window[klass]) return window[klass];
klass = 'HTML' + tagName + 'Element';
if (window[klass]) return window[klass];
klass = 'HTML' + tagName.capitalize() + 'Element';
if (window[klass]) return window[klass];
window[klass] = { };
window[klass].prototype = document.createElement(tagName)['__proto__'];
return window[klass];
}
if (F.ElementExtensions) {
copy(Element.Methods, HTMLElement.prototype);
copy(Element.Methods.Simulated, HTMLElement.prototype, true);
}
if (F.SpecificElementExtensions) {
for (var tag in Element.Methods.ByTag) {
var klass = findDOMClass(tag);
if (Object.isUndefined(klass)) continue;
copy(T[tag], klass.prototype);
}
}
Object.extend(Element, Element.Methods);
delete Element.ByTag;
if (Element.extend.refresh) Element.extend.refresh();
Element.cache = { };
};
document.viewport = {
getDimensions: function() {
var dimensions = { }, B = Prototype.Browser;
$w('width height').each(function(d) {
var D = d.capitalize();
if (B.WebKit && !document.evaluate) {
// Safari <3.0 needs self.innerWidth/Height
dimensions[d] = self['inner' + D];
} else if (B.Opera && parseFloat(window.opera.version()) < 9.5) {
// Opera <9.5 needs document.body.clientWidth/Height
dimensions[d] = document.body['client' + D]
} else {
dimensions[d] = document.documentElement['client' + D];
}
});
return dimensions;
},
getWidth: function() {
return this.getDimensions().width;
},
getHeight: function() {
return this.getDimensions().height;
},
getScrollOffsets: function() {
return Element._returnOffset(
window.pageXOffset || document.documentElement.scrollLeft || document.body.scrollLeft,
window.pageYOffset || document.documentElement.scrollTop || document.body.scrollTop);
}
};
/* Portions of the Selector class are derived from Jack Slocum's DomQuery,
* part of YUI-Ext version 0.40, distributed under the terms of an MIT-style
* license. Please see http://www.yui-ext.com/ for more information. */
var Selector = Class.create({
initialize: function(expression) {
this.expression = expression.strip();
if (this.shouldUseSelectorsAPI()) {
this.mode = 'selectorsAPI';
} else if (this.shouldUseXPath()) {
this.mode = 'xpath';
this.compileXPathMatcher();
} else {
this.mode = "normal";
this.compileMatcher();
}
},
shouldUseXPath: function() {
if (!Prototype.BrowserFeatures.XPath) return false;
var e = this.expression;
// Safari 3 chokes on :*-of-type and :empty
if (Prototype.Browser.WebKit &&
(e.include("-of-type") || e.include(":empty")))
return false;
// XPath can't do namespaced attributes, nor can it read
// the "checked" property from DOM nodes
if ((/(\[[\w-]*?:|:checked)/).test(e))
return false;
return true;
},
shouldUseSelectorsAPI: function() {
if (!Prototype.BrowserFeatures.SelectorsAPI) return false;
if (!Selector._div) Selector._div = new Element('div');
// Make sure the browser treats the selector as valid. Test on an
// isolated element to minimize cost of this check.
try {
Selector._div.querySelector(this.expression);
} catch(e) {
return false;
}
return true;
},
compileMatcher: function() {
var e = this.expression, ps = Selector.patterns, h = Selector.handlers,
c = Selector.criteria, le, p, m;
if (Selector._cache[e]) {
this.matcher = Selector._cache[e];
return;
}
this.matcher = ["this.matcher = function(root) {",
"var r = root, h = Selector.handlers, c = false, n;"];
while (e && le != e && (/\S/).test(e)) {
le = e;
for (var i in ps) {
p = ps[i];
if (m = e.match(p)) {
this.matcher.push(Object.isFunction(c[i]) ? c[i](m) :
new Template(c[i]).evaluate(m));
e = e.replace(m[0], '');
break;
}
}
}
this.matcher.push("return h.unique(n);\n}");
eval(this.matcher.join('\n'));
Selector._cache[this.expression] = this.matcher;
},
compileXPathMatcher: function() {
var e = this.expression, ps = Selector.patterns,
x = Selector.xpath, le, m;
if (Selector._cache[e]) {
this.xpath = Selector._cache[e]; return;
}
this.matcher = ['.//*'];
while (e && le != e && (/\S/).test(e)) {
le = e;
for (var i in ps) {
if (m = e.match(ps[i])) {
this.matcher.push(Object.isFunction(x[i]) ? x[i](m) :
new Template(x[i]).evaluate(m));
e = e.replace(m[0], '');
break;
}
}
}
this.xpath = this.matcher.join('');
Selector._cache[this.expression] = this.xpath;
},
findElements: function(root) {
root = root || document;
var e = this.expression, results;
switch (this.mode) {
case 'selectorsAPI':
// querySelectorAll queries document-wide, then filters to descendants
// of the context element. That's not what we want.
// Add an explicit context to the selector if necessary.
if (root !== document) {
var oldId = root.id, id = $(root).identify();
e = "#" + id + " " + e;
}
results = $A(root.querySelectorAll(e)).map(Element.extend);
root.id = oldId;
return results;
case 'xpath':
return document._getElementsByXPath(this.xpath, root);
default:
return this.matcher(root);
}
},
match: function(element) {
this.tokens = [];
var e = this.expression, ps = Selector.patterns, as = Selector.assertions;
var le, p, m;
while (e && le !== e && (/\S/).test(e)) {
le = e;
for (var i in ps) {
p = ps[i];
if (m = e.match(p)) {
// use the Selector.assertions methods unless the selector
// is too complex.
if (as[i]) {
this.tokens.push([i, Object.clone(m)]);
e = e.replace(m[0], '');
} else {
// reluctantly do a document-wide search
// and look for a match in the array
return this.findElements(document).include(element);
}
}
}
}
var match = true, name, matches;
for (var i = 0, token; token = this.tokens[i]; i++) {
name = token[0], matches = token[1];
if (!Selector.assertions[name](element, matches)) {
match = false; break;
}
}
return match;
},
toString: function() {
return this.expression;
},
inspect: function() {
return "#";
}
});
Object.extend(Selector, {
_cache: { },
xpath: {
descendant: "//*",
child: "/*",
adjacent: "/following-sibling::*[1]",
laterSibling: '/following-sibling::*',
tagName: function(m) {
if (m[1] == '*') return '';
return "[local-name()='" + m[1].toLowerCase() +
"' or local-name()='" + m[1].toUpperCase() + "']";
},
className: "[contains(concat(' ', @class, ' '), ' #{1} ')]",
id: "[@id='#{1}']",
attrPresence: function(m) {
m[1] = m[1].toLowerCase();
return new Template("[@#{1}]").evaluate(m);
},
attr: function(m) {
m[1] = m[1].toLowerCase();
m[3] = m[5] || m[6];
return new Template(Selector.xpath.operators[m[2]]).evaluate(m);
},
pseudo: function(m) {
var h = Selector.xpath.pseudos[m[1]];
if (!h) return '';
if (Object.isFunction(h)) return h(m);
return new Template(Selector.xpath.pseudos[m[1]]).evaluate(m);
},
operators: {
'=': "[@#{1}='#{3}']",
'!=': "[@#{1}!='#{3}']",
'^=': "[starts-with(@#{1}, '#{3}')]",
'$=': "[substring(@#{1}, (string-length(@#{1}) - string-length('#{3}') + 1))='#{3}']",
'*=': "[contains(@#{1}, '#{3}')]",
'~=': "[contains(concat(' ', @#{1}, ' '), ' #{3} ')]",
'|=': "[contains(concat('-', @#{1}, '-'), '-#{3}-')]"
},
pseudos: {
'first-child': '[not(preceding-sibling::*)]',
'last-child': '[not(following-sibling::*)]',
'only-child': '[not(preceding-sibling::* or following-sibling::*)]',
'empty': "[count(*) = 0 and (count(text()) = 0)]",
'checked': "[@checked]",
'disabled': "[(@disabled) and (@type!='hidden')]",
'enabled': "[not(@disabled) and (@type!='hidden')]",
'not': function(m) {
var e = m[6], p = Selector.patterns,
x = Selector.xpath, le, v;
var exclusion = [];
while (e && le != e && (/\S/).test(e)) {
le = e;
for (var i in p) {
if (m = e.match(p[i])) {
v = Object.isFunction(x[i]) ? x[i](m) : new Template(x[i]).evaluate(m);
exclusion.push("(" + v.substring(1, v.length - 1) + ")");
e = e.replace(m[0], '');
break;
}
}
}
return "[not(" + exclusion.join(" and ") + ")]";
},
'nth-child': function(m) {
return Selector.xpath.pseudos.nth("(count(./preceding-sibling::*) + 1) ", m);
},
'nth-last-child': function(m) {
return Selector.xpath.pseudos.nth("(count(./following-sibling::*) + 1) ", m);
},
'nth-of-type': function(m) {
return Selector.xpath.pseudos.nth("position() ", m);
},
'nth-last-of-type': function(m) {
return Selector.xpath.pseudos.nth("(last() + 1 - position()) ", m);
},
'first-of-type': function(m) {
m[6] = "1"; return Selector.xpath.pseudos['nth-of-type'](m);
},
'last-of-type': function(m) {
m[6] = "1"; return Selector.xpath.pseudos['nth-last-of-type'](m);
},
'only-of-type': function(m) {
var p = Selector.xpath.pseudos; return p['first-of-type'](m) + p['last-of-type'](m);
},
nth: function(fragment, m) {
var mm, formula = m[6], predicate;
if (formula == 'even') formula = '2n+0';
if (formula == 'odd') formula = '2n+1';
if (mm = formula.match(/^(\d+)$/)) // digit only
return '[' + fragment + "= " + mm[1] + ']';
if (mm = formula.match(/^(-?\d*)?n(([+-])(\d+))?/)) { // an+b
if (mm[1] == "-") mm[1] = -1;
var a = mm[1] ? Number(mm[1]) : 1;
var b = mm[2] ? Number(mm[2]) : 0;
predicate = "[((#{fragment} - #{b}) mod #{a} = 0) and " +
"((#{fragment} - #{b}) div #{a} >= 0)]";
return new Template(predicate).evaluate({
fragment: fragment, a: a, b: b });
}
}
}
},
criteria: {
tagName: 'n = h.tagName(n, r, "#{1}", c); c = false;',
className: 'n = h.className(n, r, "#{1}", c); c = false;',
id: 'n = h.id(n, r, "#{1}", c); c = false;',
attrPresence: 'n = h.attrPresence(n, r, "#{1}", c); c = false;',
attr: function(m) {
m[3] = (m[5] || m[6]);
return new Template('n = h.attr(n, r, "#{1}", "#{3}", "#{2}", c); c = false;').evaluate(m);
},
pseudo: function(m) {
if (m[6]) m[6] = m[6].replace(/"/g, '\\"');
return new Template('n = h.pseudo(n, "#{1}", "#{6}", r, c); c = false;').evaluate(m);
},
descendant: 'c = "descendant";',
child: 'c = "child";',
adjacent: 'c = "adjacent";',
laterSibling: 'c = "laterSibling";'
},
patterns: {
// combinators must be listed first
// (and descendant needs to be last combinator)
laterSibling: /^\s*~\s*/,
child: /^\s*>\s*/,
adjacent: /^\s*\+\s*/,
descendant: /^\s/,
// selectors follow
tagName: /^\s*(\*|[\w\-]+)(\b|$)?/,
id: /^#([\w\-\*]+)(\b|$)/,
className: /^\.([\w\-\*]+)(\b|$)/,
pseudo:
/^:((first|last|nth|nth-last|only)(-child|-of-type)|empty|checked|(en|dis)abled|not)(\((.*?)\))?(\b|$|(?=\s|[:+~>]))/,
attrPresence: /^\[((?:[\w]+:)?[\w]+)\]/,
attr: /\[((?:[\w-]*:)?[\w-]+)\s*(?:([!^$*~|]?=)\s*((['"])([^\4]*?)\4|([^'"][^\]]*?)))?\]/
},
// for Selector.match and Element#match
assertions: {
tagName: function(element, matches) {
return matches[1].toUpperCase() == element.tagName.toUpperCase();
},
className: function(element, matches) {
return Element.hasClassName(element, matches[1]);
},
id: function(element, matches) {
return element.id === matches[1];
},
attrPresence: function(element, matches) {
return Element.hasAttribute(element, matches[1]);
},
attr: function(element, matches) {
var nodeValue = Element.readAttribute(element, matches[1]);
return nodeValue && Selector.operators[matches[2]](nodeValue, matches[5] || matches[6]);
}
},
handlers: {
// UTILITY FUNCTIONS
// joins two collections
concat: function(a, b) {
for (var i = 0, node; node = b[i]; i++)
a.push(node);
return a;
},
// marks an array of nodes for counting
mark: function(nodes) {
var _true = Prototype.emptyFunction;
for (var i = 0, node; node = nodes[i]; i++)
node._countedByPrototype = _true;
return nodes;
},
unmark: function(nodes) {
for (var i = 0, node; node = nodes[i]; i++)
node._countedByPrototype = undefined;
return nodes;
},
// mark each child node with its position (for nth calls)
// "ofType" flag indicates whether we're indexing for nth-of-type
// rather than nth-child
index: function(parentNode, reverse, ofType) {
parentNode._countedByPrototype = Prototype.emptyFunction;
if (reverse) {
for (var nodes = parentNode.childNodes, i = nodes.length - 1, j = 1; i >= 0; i--) {
var node = nodes[i];
if (node.nodeType == 1 && (!ofType || node._countedByPrototype)) node.nodeIndex = j++;
}
} else {
for (var i = 0, j = 1, nodes = parentNode.childNodes; node = nodes[i]; i++)
if (node.nodeType == 1 && (!ofType || node._countedByPrototype)) node.nodeIndex = j++;
}
},
// filters out duplicates and extends all nodes
unique: function(nodes) {
if (nodes.length == 0) return nodes;
var results = [], n;
for (var i = 0, l = nodes.length; i < l; i++)
if (!(n = nodes[i])._countedByPrototype) {
n._countedByPrototype = Prototype.emptyFunction;
results.push(Element.extend(n));
}
return Selector.handlers.unmark(results);
},
// COMBINATOR FUNCTIONS
descendant: function(nodes) {
var h = Selector.handlers;
for (var i = 0, results = [], node; node = nodes[i]; i++)
h.concat(results, node.getElementsByTagName('*'));
return results;
},
child: function(nodes) {
var h = Selector.handlers;
for (var i = 0, results = [], node; node = nodes[i]; i++) {
for (var j = 0, child; child = node.childNodes[j]; j++)
if (child.nodeType == 1 && child.tagName != '!') results.push(child);
}
return results;
},
adjacent: function(nodes) {
for (var i = 0, results = [], node; node = nodes[i]; i++) {
var next = this.nextElementSibling(node);
if (next) results.push(next);
}
return results;
},
laterSibling: function(nodes) {
var h = Selector.handlers;
for (var i = 0, results = [], node; node = nodes[i]; i++)
h.concat(results, Element.nextSiblings(node));
return results;
},
nextElementSibling: function(node) {
while (node = node.nextSibling)
if (node.nodeType == 1) return node;
return null;
},
previousElementSibling: function(node) {
while (node = node.previousSibling)
if (node.nodeType == 1) return node;
return null;
},
// TOKEN FUNCTIONS
tagName: function(nodes, root, tagName, combinator) {
var uTagName = tagName.toUpperCase();
var results = [], h = Selector.handlers;
if (nodes) {
if (combinator) {
// fastlane for ordinary descendant combinators
if (combinator == "descendant") {
for (var i = 0, node; node = nodes[i]; i++)
h.concat(results, node.getElementsByTagName(tagName));
return results;
} else nodes = this[combinator](nodes);
if (tagName == "*") return nodes;
}
for (var i = 0, node; node = nodes[i]; i++)
if (node.tagName.toUpperCase() === uTagName) results.push(node);
return results;
} else return root.getElementsByTagName(tagName);
},
id: function(nodes, root, id, combinator) {
var targetNode = $(id), h = Selector.handlers;
if (!targetNode) return [];
if (!nodes && root == document) return [targetNode];
if (nodes) {
if (combinator) {
if (combinator == 'child') {
for (var i = 0, node; node = nodes[i]; i++)
if (targetNode.parentNode == node) return [targetNode];
} else if (combinator == 'descendant') {
for (var i = 0, node; node = nodes[i]; i++)
if (Element.descendantOf(targetNode, node)) return [targetNode];
} else if (combinator == 'adjacent') {
for (var i = 0, node; node = nodes[i]; i++)
if (Selector.handlers.previousElementSibling(targetNode) == node)
return [targetNode];
} else nodes = h[combinator](nodes);
}
for (var i = 0, node; node = nodes[i]; i++)
if (node == targetNode) return [targetNode];
return [];
}
return (targetNode && Element.descendantOf(targetNode, root)) ? [targetNode] : [];
},
className: function(nodes, root, className, combinator) {
if (nodes && combinator) nodes = this[combinator](nodes);
return Selector.handlers.byClassName(nodes, root, className);
},
byClassName: function(nodes, root, className) {
if (!nodes) nodes = Selector.handlers.descendant([root]);
var needle = ' ' + className + ' ';
for (var i = 0, results = [], node, nodeClassName; node = nodes[i]; i++) {
nodeClassName = node.className;
if (nodeClassName.length == 0) continue;
if (nodeClassName == className || (' ' + nodeClassName + ' ').include(needle))
results.push(node);
}
return results;
},
attrPresence: function(nodes, root, attr, combinator) {
if (!nodes) nodes = root.getElementsByTagName("*");
if (nodes && combinator) nodes = this[combinator](nodes);
var results = [];
for (var i = 0, node; node = nodes[i]; i++)
if (Element.hasAttribute(node, attr)) results.push(node);
return results;
},
attr: function(nodes, root, attr, value, operator, combinator) {
if (!nodes) nodes = root.getElementsByTagName("*");
if (nodes && combinator) nodes = this[combinator](nodes);
var handler = Selector.operators[operator], results = [];
for (var i = 0, node; node = nodes[i]; i++) {
var nodeValue = Element.readAttribute(node, attr);
if (nodeValue === null) continue;
if (handler(nodeValue, value)) results.push(node);
}
return results;
},
pseudo: function(nodes, name, value, root, combinator) {
if (nodes && combinator) nodes = this[combinator](nodes);
if (!nodes) nodes = root.getElementsByTagName("*");
return Selector.pseudos[name](nodes, value, root);
}
},
pseudos: {
'first-child': function(nodes, value, root) {
for (var i = 0, results = [], node; node = nodes[i]; i++) {
if (Selector.handlers.previousElementSibling(node)) continue;
results.push(node);
}
return results;
},
'last-child': function(nodes, value, root) {
for (var i = 0, results = [], node; node = nodes[i]; i++) {
if (Selector.handlers.nextElementSibling(node)) continue;
results.push(node);
}
return results;
},
'only-child': function(nodes, value, root) {
var h = Selector.handlers;
for (var i = 0, results = [], node; node = nodes[i]; i++)
if (!h.previousElementSibling(node) && !h.nextElementSibling(node))
results.push(node);
return results;
},
'nth-child': function(nodes, formula, root) {
return Selector.pseudos.nth(nodes, formula, root);
},
'nth-last-child': function(nodes, formula, root) {
return Selector.pseudos.nth(nodes, formula, root, true);
},
'nth-of-type': function(nodes, formula, root) {
return Selector.pseudos.nth(nodes, formula, root, false, true);
},
'nth-last-of-type': function(nodes, formula, root) {
return Selector.pseudos.nth(nodes, formula, root, true, true);
},
'first-of-type': function(nodes, formula, root) {
return Selector.pseudos.nth(nodes, "1", root, false, true);
},
'last-of-type': function(nodes, formula, root) {
return Selector.pseudos.nth(nodes, "1", root, true, true);
},
'only-of-type': function(nodes, formula, root) {
var p = Selector.pseudos;
return p['last-of-type'](p['first-of-type'](nodes, formula, root), formula, root);
},
// handles the an+b logic
getIndices: function(a, b, total) {
if (a == 0) return b > 0 ? [b] : [];
return $R(1, total).inject([], function(memo, i) {
if (0 == (i - b) % a && (i - b) / a >= 0) memo.push(i);
return memo;
});
},
// handles nth(-last)-child, nth(-last)-of-type, and (first|last)-of-type
nth: function(nodes, formula, root, reverse, ofType) {
if (nodes.length == 0) return [];
if (formula == 'even') formula = '2n+0';
if (formula == 'odd') formula = '2n+1';
var h = Selector.handlers, results = [], indexed = [], m;
h.mark(nodes);
for (var i = 0, node; node = nodes[i]; i++) {
if (!node.parentNode._countedByPrototype) {
h.index(node.parentNode, reverse, ofType);
indexed.push(node.parentNode);
}
}
if (formula.match(/^\d+$/)) { // just a number
formula = Number(formula);
for (var i = 0, node; node = nodes[i]; i++)
if (node.nodeIndex == formula) results.push(node);
} else if (m = formula.match(/^(-?\d*)?n(([+-])(\d+))?/)) { // an+b
if (m[1] == "-") m[1] = -1;
var a = m[1] ? Number(m[1]) : 1;
var b = m[2] ? Number(m[2]) : 0;
var indices = Selector.pseudos.getIndices(a, b, nodes.length);
for (var i = 0, node, l = indices.length; node = nodes[i]; i++) {
for (var j = 0; j < l; j++)
if (node.nodeIndex == indices[j]) results.push(node);
}
}
h.unmark(nodes);
h.unmark(indexed);
return results;
},
'empty': function(nodes, value, root) {
for (var i = 0, results = [], node; node = nodes[i]; i++) {
// IE treats comments as element nodes
if (node.tagName == '!' || node.firstChild) continue;
results.push(node);
}
return results;
},
'not': function(nodes, selector, root) {
var h = Selector.handlers, selectorType, m;
var exclusions = new Selector(selector).findElements(root);
h.mark(exclusions);
for (var i = 0, results = [], node; node = nodes[i]; i++)
if (!node._countedByPrototype) results.push(node);
h.unmark(exclusions);
return results;
},
'enabled': function(nodes, value, root) {
for (var i = 0, results = [], node; node = nodes[i]; i++)
if (!node.disabled && (!node.type || node.type !== 'hidden'))
results.push(node);
return results;
},
'disabled': function(nodes, value, root) {
for (var i = 0, results = [], node; node = nodes[i]; i++)
if (node.disabled) results.push(node);
return results;
},
'checked': function(nodes, value, root) {
for (var i = 0, results = [], node; node = nodes[i]; i++)
if (node.checked) results.push(node);
return results;
}
},
operators: {
'=': function(nv, v) { return nv == v; },
'!=': function(nv, v) { return nv != v; },
'^=': function(nv, v) { return nv == v || nv && nv.startsWith(v); },
'$=': function(nv, v) { return nv == v || nv && nv.endsWith(v); },
'*=': function(nv, v) { return nv == v || nv && nv.include(v); },
'$=': function(nv, v) { return nv.endsWith(v); },
'*=': function(nv, v) { return nv.include(v); },
'~=': function(nv, v) { return (' ' + nv + ' ').include(' ' + v + ' '); },
'|=': function(nv, v) { return ('-' + (nv || "").toUpperCase() +
'-').include('-' + (v || "").toUpperCase() + '-'); }
},
split: function(expression) {
var expressions = [];
expression.scan(/(([\w#:.~>+()\s-]+|\*|\[.*?\])+)\s*(,|$)/, function(m) {
expressions.push(m[1].strip());
});
return expressions;
},
matchElements: function(elements, expression) {
var matches = $$(expression), h = Selector.handlers;
h.mark(matches);
for (var i = 0, results = [], element; element = elements[i]; i++)
if (element._countedByPrototype) results.push(element);
h.unmark(matches);
return results;
},
findElement: function(elements, expression, index) {
if (Object.isNumber(expression)) {
index = expression; expression = false;
}
return Selector.matchElements(elements, expression || '*')[index || 0];
},
findChildElements: function(element, expressions) {
expressions = Selector.split(expressions.join(','));
var results = [], h = Selector.handlers;
for (var i = 0, l = expressions.length, selector; i < l; i++) {
selector = new Selector(expressions[i].strip());
h.concat(results, selector.findElements(element));
}
return (l > 1) ? h.unique(results) : results;
}
});
if (Prototype.Browser.IE) {
Object.extend(Selector.handlers, {
// IE returns comment nodes on getElementsByTagName("*").
// Filter them out.
concat: function(a, b) {
for (var i = 0, node; node = b[i]; i++)
if (node.tagName !== "!") a.push(node);
return a;
},
// IE improperly serializes _countedByPrototype in (inner|outer)HTML.
unmark: function(nodes) {
for (var i = 0, node; node = nodes[i]; i++)
node.removeAttribute('_countedByPrototype');
return nodes;
}
});
}
function $$() {
return Selector.findChildElements(document, $A(arguments));
}
var Form = {
reset: function(form) {
$(form).reset();
return form;
},
serializeElements: function(elements, options) {
if (typeof options != 'object') options = { hash: !!options };
else if (Object.isUndefined(options.hash)) options.hash = true;
var key, value, submitted = false, submit = options.submit;
var data = elements.inject({ }, function(result, element) {
if (!element.disabled && element.name) {
key = element.name; value = $(element).getValue();
if (value != null && element.type != 'file' && (element.type != 'submit' || (!submitted &&
submit !== false && (!submit || key == submit) && (submitted = true)))) {
if (key in result) {
// a key is already present; construct an array of values
if (!Object.isArray(result[key])) result[key] = [result[key]];
result[key].push(value);
}
else result[key] = value;
}
}
return result;
});
return options.hash ? data : Object.toQueryString(data);
}
};
Form.Methods = {
serialize: function(form, options) {
return Form.serializeElements(Form.getElements(form), options);
},
getElements: function(form) {
return $A($(form).getElementsByTagName('*')).inject([],
function(elements, child) {
if (Form.Element.Serializers[child.tagName.toLowerCase()])
elements.push(Element.extend(child));
return elements;
}
);
},
getInputs: function(form, typeName, name) {
form = $(form);
var inputs = form.getElementsByTagName('input');
if (!typeName && !name) return $A(inputs).map(Element.extend);
for (var i = 0, matchingInputs = [], length = inputs.length; i < length; i++) {
var input = inputs[i];
if ((typeName && input.type != typeName) || (name && input.name != name))
continue;
matchingInputs.push(Element.extend(input));
}
return matchingInputs;
},
disable: function(form) {
form = $(form);
Form.getElements(form).invoke('disable');
return form;
},
enable: function(form) {
form = $(form);
Form.getElements(form).invoke('enable');
return form;
},
findFirstElement: function(form) {
var elements = $(form).getElements().findAll(function(element) {
return 'hidden' != element.type && !element.disabled;
});
var firstByIndex = elements.findAll(function(element) {
return element.hasAttribute('tabIndex') && element.tabIndex >= 0;
}).sortBy(function(element) { return element.tabIndex }).first();
return firstByIndex ? firstByIndex : elements.find(function(element) {
return ['input', 'select', 'textarea'].include(element.tagName.toLowerCase());
});
},
focusFirstElement: function(form) {
form = $(form);
form.findFirstElement().activate();
return form;
},
request: function(form, options) {
form = $(form), options = Object.clone(options || { });
var params = options.parameters, action = form.readAttribute('action') || '';
if (action.blank()) action = window.location.href;
options.parameters = form.serialize(true);
if (params) {
if (Object.isString(params)) params = params.toQueryParams();
Object.extend(options.parameters, params);
}
if (form.hasAttribute('method') && !options.method)
options.method = form.method;
return new Ajax.Request(action, options);
}
};
/*--------------------------------------------------------------------------*/
Form.Element = {
focus: function(element) {
$(element).focus();
return element;
},
select: function(element) {
$(element).select();
return element;
}
};
Form.Element.Methods = {
serialize: function(element) {
element = $(element);
if (!element.disabled && element.name) {
var value = element.getValue();
if (value != undefined) {
var pair = { };
pair[element.name] = value;
return Object.toQueryString(pair);
}
}
return '';
},
getValue: function(element) {
element = $(element);
var method = element.tagName.toLowerCase();
return Form.Element.Serializers[method](element);
},
setValue: function(element, value) {
element = $(element);
var method = element.tagName.toLowerCase();
Form.Element.Serializers[method](element, value);
return element;
},
clear: function(element) {
$(element).value = '';
return element;
},
present: function(element) {
return $(element).value != '';
},
activate: function(element) {
element = $(element);
try {
element.focus();
if (element.select && (element.tagName.toLowerCase() != 'input' ||
!['button', 'reset', 'submit'].include(element.type)))
element.select();
} catch (e) { }
return element;
},
disable: function(element) {
element = $(element);
element.disabled = true;
return element;
},
enable: function(element) {
element = $(element);
element.disabled = false;
return element;
}
};
/*--------------------------------------------------------------------------*/
var Field = Form.Element;
var $F = Form.Element.Methods.getValue;
/*--------------------------------------------------------------------------*/
Form.Element.Serializers = {
input: function(element, value) {
switch (element.type.toLowerCase()) {
case 'checkbox':
case 'radio':
return Form.Element.Serializers.inputSelector(element, value);
default:
return Form.Element.Serializers.textarea(element, value);
}
},
inputSelector: function(element, value) {
if (Object.isUndefined(value)) return element.checked ? element.value : null;
else element.checked = !!value;
},
textarea: function(element, value) {
if (Object.isUndefined(value)) return element.value;
else element.value = value;
},
select: function(element, value) {
if (Object.isUndefined(value))
return this[element.type == 'select-one' ?
'selectOne' : 'selectMany'](element);
else {
var opt, currentValue, single = !Object.isArray(value);
for (var i = 0, length = element.length; i < length; i++) {
opt = element.options[i];
currentValue = this.optionValue(opt);
if (single) {
if (currentValue == value) {
opt.selected = true;
return;
}
}
else opt.selected = value.include(currentValue);
}
}
},
selectOne: function(element) {
var index = element.selectedIndex;
return index >= 0 ? this.optionValue(element.options[index]) : null;
},
selectMany: function(element) {
var values, length = element.length;
if (!length) return null;
for (var i = 0, values = []; i < length; i++) {
var opt = element.options[i];
if (opt.selected) values.push(this.optionValue(opt));
}
return values;
},
optionValue: function(opt) {
// extend element because hasAttribute may not be native
return Element.extend(opt).hasAttribute('value') ? opt.value : opt.text;
}
};
/*--------------------------------------------------------------------------*/
Abstract.TimedObserver = Class.create(PeriodicalExecuter, {
initialize: function($super, element, frequency, callback) {
$super(callback, frequency);
this.element = $(element);
this.lastValue = this.getValue();
},
execute: function() {
var value = this.getValue();
if (Object.isString(this.lastValue) && Object.isString(value) ?
this.lastValue != value : String(this.lastValue) != String(value)) {
this.callback(this.element, value);
this.lastValue = value;
}
}
});
Form.Element.Observer = Class.create(Abstract.TimedObserver, {
getValue: function() {
return Form.Element.getValue(this.element);
}
});
Form.Observer = Class.create(Abstract.TimedObserver, {
getValue: function() {
return Form.serialize(this.element);
}
});
/*--------------------------------------------------------------------------*/
Abstract.EventObserver = Class.create({
initialize: function(element, callback) {
this.element = $(element);
this.callback = callback;
this.lastValue = this.getValue();
if (this.element.tagName.toLowerCase() == 'form')
this.registerFormCallbacks();
else
this.registerCallback(this.element);
},
onElementEvent: function() {
var value = this.getValue();
if (this.lastValue != value) {
this.callback(this.element, value);
this.lastValue = value;
}
},
registerFormCallbacks: function() {
Form.getElements(this.element).each(this.registerCallback, this);
},
registerCallback: function(element) {
if (element.type) {
switch (element.type.toLowerCase()) {
case 'checkbox':
case 'radio':
Event.observe(element, 'click', this.onElementEvent.bind(this));
break;
default:
Event.observe(element, 'change', this.onElementEvent.bind(this));
break;
}
}
}
});
Form.Element.EventObserver = Class.create(Abstract.EventObserver, {
getValue: function() {
return Form.Element.getValue(this.element);
}
});
Form.EventObserver = Class.create(Abstract.EventObserver, {
getValue: function() {
return Form.serialize(this.element);
}
});
if (!window.Event) var Event = { };
Object.extend(Event, {
KEY_BACKSPACE: 8,
KEY_TAB: 9,
KEY_RETURN: 13,
KEY_ESC: 27,
KEY_LEFT: 37,
KEY_UP: 38,
KEY_RIGHT: 39,
KEY_DOWN: 40,
KEY_DELETE: 46,
KEY_HOME: 36,
KEY_END: 35,
KEY_PAGEUP: 33,
KEY_PAGEDOWN: 34,
KEY_INSERT: 45,
cache: { },
relatedTarget: function(event) {
var element;
switch(event.type) {
case 'mouseover': element = event.fromElement; break;
case 'mouseout': element = event.toElement; break;
default: return null;
}
return Element.extend(element);
}
});
Event.Methods = (function() {
var isButton;
if (Prototype.Browser.IE) {
var buttonMap = { 0: 1, 1: 4, 2: 2 };
isButton = function(event, code) {
return event.button == buttonMap[code];
};
} else if (Prototype.Browser.WebKit) {
isButton = function(event, code) {
switch (code) {
case 0: return event.which == 1 && !event.metaKey;
case 1: return event.which == 1 && event.metaKey;
default: return false;
}
};
} else {
isButton = function(event, code) {
return event.which ? (event.which === code + 1) : (event.button === code);
};
}
return {
isLeftClick: function(event) { return isButton(event, 0) },
isMiddleClick: function(event) { return isButton(event, 1) },
isRightClick: function(event) { return isButton(event, 2) },
element: function(event) {
event = Event.extend(event);
var node = event.target,
type = event.type,
currentTarget = event.currentTarget;
if (currentTarget && currentTarget.tagName) {
// Firefox screws up the "click" event when moving between radio buttons
// via arrow keys. It also screws up the "load" and "error" events on images,
// reporting the document as the target instead of the original image.
if (type === 'load' || type === 'error' ||
(type === 'click' && currentTarget.tagName.toLowerCase() === 'input'
&& currentTarget.type === 'radio'))
node = currentTarget;
}
if (node.nodeType == Node.TEXT_NODE) node = node.parentNode;
return Element.extend(node);
},
findElement: function(event, expression) {
var element = Event.element(event);
if (!expression) return element;
var elements = [element].concat(element.ancestors());
return Selector.findElement(elements, expression, 0);
},
pointer: function(event) {
var docElement = document.documentElement,
body = document.body || { scrollLeft: 0, scrollTop: 0 };
return {
x: event.pageX || (event.clientX +
(docElement.scrollLeft || body.scrollLeft) -
(docElement.clientLeft || 0)),
y: event.pageY || (event.clientY +
(docElement.scrollTop || body.scrollTop) -
(docElement.clientTop || 0))
};
},
pointerX: function(event) { return Event.pointer(event).x },
pointerY: function(event) { return Event.pointer(event).y },
stop: function(event) {
Event.extend(event);
event.preventDefault();
event.stopPropagation();
event.stopped = true;
}
};
})();
Event.extend = (function() {
var methods = Object.keys(Event.Methods).inject({ }, function(m, name) {
m[name] = Event.Methods[name].methodize();
return m;
});
if (Prototype.Browser.IE) {
Object.extend(methods, {
stopPropagation: function() { this.cancelBubble = true },
preventDefault: function() { this.returnValue = false },
inspect: function() { return "[object Event]" }
});
return function(event) {
if (!event) return false;
if (event._extendedByPrototype) return event;
event._extendedByPrototype = Prototype.emptyFunction;
var pointer = Event.pointer(event);
Object.extend(event, {
target: event.srcElement,
relatedTarget: Event.relatedTarget(event),
pageX: pointer.x,
pageY: pointer.y
});
return Object.extend(event, methods);
};
} else {
Event.prototype = Event.prototype || document.createEvent("HTMLEvents")['__proto__'];
Object.extend(Event.prototype, methods);
return Prototype.K;
}
})();
Object.extend(Event, (function() {
var cache = Event.cache;
function getEventID(element) {
if (element._prototypeEventID) return element._prototypeEventID[0];
arguments.callee.id = arguments.callee.id || 1;
return element._prototypeEventID = [++arguments.callee.id];
}
function getDOMEventName(eventName) {
if (eventName && eventName.include(':')) return "dataavailable";
return eventName;
}
function getCacheForID(id) {
return cache[id] = cache[id] || { };
}
function getWrappersForEventName(id, eventName) {
var c = getCacheForID(id);
return c[eventName] = c[eventName] || [];
}
function createWrapper(element, eventName, handler) {
var id = getEventID(element);
var c = getWrappersForEventName(id, eventName);
if (c.pluck("handler").include(handler)) return false;
var wrapper = function(event) {
if (!Event || !Event.extend ||
(event.eventName && event.eventName != eventName))
return false;
Event.extend(event);
handler.call(element, event);
};
wrapper.handler = handler;
c.push(wrapper);
return wrapper;
}
function findWrapper(id, eventName, handler) {
var c = getWrappersForEventName(id, eventName);
return c.find(function(wrapper) { return wrapper.handler == handler });
}
function destroyWrapper(id, eventName, handler) {
var c = getCacheForID(id);
if (!c[eventName]) return false;
c[eventName] = c[eventName].without(findWrapper(id, eventName, handler));
}
function destroyCache() {
for (var id in cache)
for (var eventName in cache[id])
cache[id][eventName] = null;
}
// Internet Explorer needs to remove event handlers on page unload
// in order to avoid memory leaks.
if (window.attachEvent) {
window.attachEvent("onunload", destroyCache);
}
// Safari has a dummy event handler on page unload so that it won't
// use its bfcache. Safari <= 3.1 has an issue with restoring the "document"
// object when page is returned to via the back button using its bfcache.
if (Prototype.Browser.WebKit) {
window.addEventListener('unload', Prototype.emptyFunction, false);
}
return {
observe: function(element, eventName, handler) {
element = $(element);
var name = getDOMEventName(eventName);
var wrapper = createWrapper(element, eventName, handler);
if (!wrapper) return element;
if (element.addEventListener) {
element.addEventListener(name, wrapper, false);
} else {
element.attachEvent("on" + name, wrapper);
}
return element;
},
stopObserving: function(element, eventName, handler) {
element = $(element);
var id = getEventID(element), name = getDOMEventName(eventName);
if (!handler && eventName) {
getWrappersForEventName(id, eventName).each(function(wrapper) {
element.stopObserving(eventName, wrapper.handler);
});
return element;
} else if (!eventName) {
Object.keys(getCacheForID(id)).each(function(eventName) {
element.stopObserving(eventName);
});
return element;
}
var wrapper = findWrapper(id, eventName, handler);
if (!wrapper) return element;
if (element.removeEventListener) {
element.removeEventListener(name, wrapper, false);
} else {
element.detachEvent("on" + name, wrapper);
}
destroyWrapper(id, eventName, handler);
return element;
},
fire: function(element, eventName, memo) {
element = $(element);
if (element == document && document.createEvent && !element.dispatchEvent)
element = document.documentElement;
var event;
if (document.createEvent) {
event = document.createEvent("HTMLEvents");
event.initEvent("dataavailable", true, true);
} else {
event = document.createEventObject();
event.eventType = "ondataavailable";
}
event.eventName = eventName;
event.memo = memo || { };
if (document.createEvent) {
element.dispatchEvent(event);
} else {
element.fireEvent(event.eventType, event);
}
return Event.extend(event);
}
};
})());
Object.extend(Event, Event.Methods);
Element.addMethods({
fire: Event.fire,
observe: Event.observe,
stopObserving: Event.stopObserving
});
Object.extend(document, {
fire: Element.Methods.fire.methodize(),
observe: Element.Methods.observe.methodize(),
stopObserving: Element.Methods.stopObserving.methodize(),
loaded: false
});
(function() {
/* Support for the DOMContentLoaded event is based on work by Dan Webb,
Matthias Miller, Dean Edwards and John Resig. */
var timer;
function fireContentLoadedEvent() {
if (document.loaded) return;
if (timer) window.clearInterval(timer);
document.fire("dom:loaded");
document.loaded = true;
}
if (document.addEventListener) {
if (Prototype.Browser.WebKit) {
timer = window.setInterval(function() {
if (/loaded|complete/.test(document.readyState))
fireContentLoadedEvent();
}, 0);
Event.observe(window, "load", fireContentLoadedEvent);
} else {
document.addEventListener("DOMContentLoaded",
fireContentLoadedEvent, false);
}
} else {
document.write("
//
// is a unique (to this page) id for this multi-autocomplete
//
// the elements of each choices array are:
// - text to be shown in auto-complete candidate list and in display once chosen (pre-escaped)
// - extra info to be displayed in parens next to text in auto-complete candidates list (pre-escaped)
// - id to be passed back to the server
// - optional CSS class (see below)
//
// The optional CSS class can be used to change the appearance of certain
// candidates and selected choices. For example, to make 'Biology' in the
// example above have green text in the candidate list and a green selected
// choice box, use the following CSS:
//
// div.multiautocomplete_candidates ul li.network {
// color:green;
// }
// div.multiautocomplete_display span.network {
// background:#ccffcc;
// }
//
// the second array should contain ids (from the first aray) of pre-selected choices
//
// options
// defaultText - default (hint) text to be shown when display in empty and not focused
// maxSelectedChoices - maximum number of selected choices the user can choose
// resultInputName - name for hidden inputs used to return results to server
//
// a hidden input with name or resultInputName will be added for each selected choice
//
// "public" functions
// clear
// disable
// enable
// focus
// clearAndDisable
// enableAndFocus
// getNumSelectedChoices
// registerEscapeListener
// registerFocusListener
// registerBlurListener
// registerNumSelectedChoicesListener
// addSelectedChoiceById
//
// terminology:
// - we are passed a list of all possible CHOICES
// - CANDIDATES are choices shown to the user in the auto-complete dropdown
// - SELECTED CHOICES are the choices the user selected and are displayed in mini-boxes
// - HIGHLIGHTING is used both for CANDIDATES (so the user can choose from the dropwn) and for
// SELECTED CHOICES (so the user can select and delete previously entered selected choices).
//
MultiAutoComplete = Class.create();
MultiAutoComplete.prototype = {
initialize: function(id, choices, preselectedChoices, options) {
this.id = id;
this.display = $(id + "_multiautocomplete_display");
this.input = $(id + "_multiautocomplete_input");
this.candidates = $(id + "_multiautocomplete_candidates");
this.choices = choices;
this.options = options || {};
this.currentCandidates = new Array(); // array of currently displayed candidates
this.highlightedCandidate = -1; // index currently highlighted candidate, or -1 if none
this.lastSearchString = '';
this.selectedChoices = new Array(); // associative array from ids of currently selected candidates
this.numSelectedChoices = 0;
this.mode = 'normal'; // 'normal' indicates the user can type to add new selected choices
// 'selection' indicates the user is selecting (highlighting) a selected choice
// 'max' indicates the user may not add any more selected choices
this.highlightedSelectedChoice = null; // in 'selection mode', the currently highlighted choice
this.lastHighlightedSelectedChoice = null; // in 'selection mode', the previously highlighted choice
this.defaultText = this.options.defaultText;
this.maxSelectedChoices = this.options.maxSelectedChoices || 10000;
this.resultInputName = this.options.resultInputName || this.id;
this.preSelectChoices(preselectedChoices);
// observers for display div
Event.observe(this.display, "click", this.onDisplayClick.bindAsEventListener(this));
// observers for input box
if (Prototype.Browser.Gecko) {
Event.observe(this.input, "keypress", this.onInputKeyPress.bindAsEventListener(this));
} else {
Event.observe(this.input, "keydown", this.onInputKeyPress.bindAsEventListener(this));
}
Event.observe(this.input, "keyup", this.onInputKeyUp.bindAsEventListener(this));
Event.observe(this.input, "focus", this.onInputFocus.bindAsEventListener(this));
Event.observe(this.input, "blur", this.onInputBlur.bindAsEventListener(this));
this.showDefaultText();
},
getNumSelectedChoices: function() {
return this.numSelectedChoices;
},
registerEscapeListener: function(listener) {
this.escapeListener = listener;
},
registerFocusListener: function(listener) {
this.focusListener = listener;
},
registerBlurListener: function(listener) {
this.blurListener = listener;
},
registerNumSelectedChoicesListener: function(listener) {
this.numSelectedChoicesListener = listener;
},
// clear all selected choices
clear: function() {
var selectedChoices = this.display.getElementsBySelector('span.selected-choice');
for (var i = 0; i < selectedChoices.length; i++) {
selectedChoices[i].multiAutoCompleteRemoveSelf();
}
this.switchToNormalMode();
},
disable: function() {
this.input.disabled = true;
},
disabled: function() {
return this.input.disabled;
},
enable: function() {
this.input.disabled = false;
},
enableAndShowDefaultText: function() {
this.showDefaultText();
this.enable();
},
focus: function() {
this.inputFocus();
},
clearAndDisable: function() {
if (!this.disabled()) {
this.clear();
this.disable();
}
},
enableAndFocus: function() {
this.enable();
this.focus();
},
addSelectedChoiceById: function(id) {
if (!this.isSelected(id)) {
for (var i = 0; i < this.choices.length; i++) {
if (this.choices[i][2] == id) {
this.resetInput();
this.addSelectedChoice(this.choices[i]);
break;
}
}
}
},
// if user clicks anywhere in the div, move focus to the input field
onDisplayClick: function(event) {
this.input.focus();
},
onInputKeyPress: function(event) {
if (this.mode == 'max') {
switch(event.keyCode) {
case Event.KEY_BACKSPACE:
case Event.KEY_DELETE:
case Event.KEY_LEFT:
this.possiblySwitchToSelectedMode();
Event.stop(event);
default:
Event.stop(event);
}
return;
}
if (this.mode == 'selected') {
switch(event.keyCode) {
case Event.KEY_BACKSPACE:
case Event.KEY_DELETE:
this.highlightedSelectedChoice.multiAutoCompleteRemoveSelf();
this.switchToNonSelectedMode();
Event.stop(event);
return;
case Event.KEY_LEFT:
if (this.highlightedSelectedChoice.previous() != null) {
this.lastHighlightedSelectedChoice = this.highlightedSelectedChoice;
this.highlightedSelectedChoice = this.highlightedSelectedChoice.previous();
this.highlightAppropriateSelectedChoice();
}
Event.stop(event);
break;
case Event.KEY_RIGHT:
if (this.highlightedSelectedChoice.next('span') != null) {
this.lastHighlightedSelectedChoice = this.highlightedSelectedChoice;
this.highlightedSelectedChoice = this.highlightedSelectedChoice.next();
this.highlightAppropriateSelectedChoice();
} else {
this.switchToNonSelectedMode();
Event.stop(event);
return;
}
Event.stop(event);
break;
default:
this.switchToNonSelectedMode();
}
}
if (this.mode == 'normal') {
switch(event.keyCode) {
case Event.KEY_DOWN:
this.highlightNextCandidate();
Event.stop(event);
break;
case Event.KEY_UP:
this.highlightPreviousCandidate();
Event.stop(event);
break;
case Event.KEY_RETURN:
if (this.isCandidateHighlighted()) {
this.selectHighlightedCandidate();
} else {
this.resetInput();
this.inputFocus();
}
Event.stop(event);
break;
case Event.KEY_TAB:
if (this.isCandidateHighlighted()) {
this.selectHighlightedCandidate();
Event.stop(event);
} else if (this.input.value.length > 0) {
this.resetInput();
this.inputFocus();
Event.stop(event);
}
break;
case Event.KEY_BACKSPACE:
case Event.KEY_DELETE:
case Event.KEY_LEFT:
if (this.input.value.length == 0) {
this.possiblySwitchToSelectedMode();
Event.stop(event);
}
break;
case Event.KEY_ESC:
if (this.input.value.length > 0) {
this.resetInput();
this.inputFocus();
Event.stop(event);
} else {
if (this.escapeListener != null) {
this.escapeListener();
}
}
break;
}
}
},
onInputKeyUp: function(event) {
if (this.mode == 'normal') {
this.showCandidates();
this.sizeInput(this.input.value.length);
}
},
onInputFocus: function(event) {
if (this.defaultText != null) {
this.input.removeClassName('default');
if (this.input.value == this.defaultText) {
this.resetInput();
}
}
if (this.focusListener != null) {
this.focusListener();
}
},
onInputBlur: function(event) {
if (!this.disabled()) {
this.showDefaultText();
}
if (this.blurListener != null) {
this.blurListener();
}
},
showDefaultText: function() {
if (this.defaultText != null && this.numSelectedChoices == 0) {
this.sizeInput(this.defaultText.length);
this.input.addClassName('default');
this.input.value = this.defaultText;
}
},
// show a list of candidates that match the current input (if there are any)
showCandidates: function() {
var searchString = this.input.value;
if (searchString != this.lastSearchString) {
this.currentCandidates = this.findCandidates(searchString);
this.candidates.innerHTML = this.arrayCandidatesToHtml(this.currentCandidates, searchString);
this.highlightedCandidate = -1;
if (this.currentCandidates.length > 0) {
this.associateListItemObservers();
this.highlightNextCandidate();
}
this.lastSearchString = searchString;
}
},
highlightNextCandidate: function() {
if (this.currentCandidates.length > 0) {
this.highlightedCandidate++;
if (this.highlightedCandidate == this.currentCandidates.length) {
this.highlightedCandidate = 0;
}
this.highlightAppropriateListItem();
}
},
highlightPreviousCandidate: function() {
if (this.currentCandidates.length > 0) {
this.highlightedCandidate--;
if (this.highlightedCandidate == -1) {
this.highlightedCandidate = this.currentCandidates.length - 1;
}
this.highlightAppropriateListItem();
}
},
highlightAppropriateListItem: function() {
var listItems = this.candidates.down().childElements();
for (var i = 0; i < listItems.length; i++) {
if (i == this.highlightedCandidate) {
listItems[i].addClassName('highlighted');
} else {
listItems[i].removeClassName('highlighted');
}
}
},
// support selecting candidates by mouse
associateListItemObservers: function() {
var listItems = this.candidates.down().childElements();
for (var i = 0; i < listItems.length; i++) {
listItems[i].multiAutoCompleteCandidateIndex = i;
Event.observe(listItems[i], "mouseover", this.onListItemHover.bindAsEventListener(this));
Event.observe(listItems[i], "click", this.onListItemClick.bindAsEventListener(this));
}
},
onListItemHover: function(event) {
var element = Event.findElement(event, 'LI');
if (this.highlightedCandidate != element.multiAutoCompleteCandidateIndex) {
this.highlightedCandidate = element.multiAutoCompleteCandidateIndex;
this.highlightAppropriateListItem();
}
Event.stop(event);
},
onListItemClick: function(event) {
var element = Event.findElement(event, 'LI');
this.highlightedCandidate = element.multiAutoCompleteCandidateIndex;
this.selectHighlightedCandidate();
Event.stop(event);
},
resetInput: function() {
this.input.value = '';
this.sizeInput(0);
this.showCandidates();
},
inputFocus: function() {
this.input.focus();
this.onInputFocus();
},
isCandidateHighlighted: function() {
return this.highlightedCandidate != -1;
},
selectHighlightedCandidate: function() {
this.addSelectedChoice(this.currentCandidates[this.highlightedCandidate]);
this.resetInput();
this.inputFocus();
if (this.numSelectedChoices == this.maxSelectedChoices) {
this.switchToMaxMode();
}
},
// given a 4-array, adds the corresponding selected choice to the display
addSelectedChoice: function(choice) {
var selectedChoiceId = choice[2];
var selectedChoice = document.createElement('span');
Element.addClassName(selectedChoice, 'selected-choice');
if (choice[3] != null) {
Element.addClassName(selectedChoice, choice[3]);
}
selectedChoice.innerHTML = "" +
" " + choice[0].truncate() + " "; // to get around IE bug where padding not respected on wrapped lines
this.display.insertBefore(selectedChoice,this.input);
this.display.insertBefore(document.createTextNode(' '),this.input); // to get around odd safari problem where cuts off right border of span
selectedChoice.multiAutoCompleteRemoveSelf = function() {
this.untrackSelected(selectedChoiceId);
selectedChoice.remove();
this.switchToNonSelectedMode()}.bind(this);
selectedChoice.down('span.delete').observe('click', function(event) {
selectedChoice.multiAutoCompleteRemoveSelf(); })
this.trackSelected(selectedChoiceId);
},
preSelectChoices: function(preselectedChoices) {
if (preselectedChoices != null && preselectedChoices.length > 0) {
// build associative array from id to index of choices
var choicesMap = new Array();
for (var i = 0; i < this.choices.length; i++) {
choicesMap['' + this.choices[i][2]] = i;
}
// now add each pre-selected choice
for (var i = 0; i < preselectedChoices.length; i++) {
if (choicesMap['' + preselectedChoices[i]] != null) {
this.addSelectedChoice(this.choices[choicesMap['' + preselectedChoices[i]]]);
}
}
}
},
possiblySwitchToSelectedMode: function() {
if (this.input.previous() != null) {
this.highlightedSelectedChoice = this.input.previous();
this.lastHighlightedSelectedChoice = null;
this.highlightAppropriateSelectedChoice();
this.hideInputField();
this.mode = 'selected';
}
},
switchToMaxMode: function() {
this.lastHighlightedSelectedChoice = this.highlightedSelectedChoice;
this.highlightedSelectedChoice = null;
this.highlightAppropriateSelectedChoice();
this.hideInputField();
this.mode = 'max';
},
switchToNormalMode: function() {
this.lastHighlightedSelectedChoice = this.highlightedSelectedChoice;
this.highlightedSelectedChoice = null;
this.highlightAppropriateSelectedChoice();
this.showInputField();
this.resetInput();
this.mode = 'normal';
},
switchToNonSelectedMode: function() {
if (this.numSelectedChoices == this.maxSelectedChoices) {
this.switchToMaxMode();
} else {
this.switchToNormalMode();
this.inputFocus();
}
},
hideInputField: function() {
this.input.style.position = 'absolute';
this.input.style.left = '-5000';
this.input.style.width = '1px';
},
showInputField: function() {
this.input.style.position = 'static';
this.input.style.left = 'auto';
this.sizeInput(0);
},
highlightAppropriateSelectedChoice: function() {
if (this.lastHighlightedSelectedChoice != null) {
this.lastHighlightedSelectedChoice.removeClassName('highlighted-selected-choice');
}
if (this.highlightedSelectedChoice != null) {
this.highlightedSelectedChoice.addClassName('highlighted-selected-choice');
}
},
// size the input box to approximately accomodate the specified number of chars
sizeInput: function(n) {
this.input.style.width = (30 + 7 * n) + "px";
},
// returns if the choice with id is already one of our selected choices
isSelected: function(id) {
return this.selectedChoices['' + id] != null;
},
// tracks that the user selected the specified choice
trackSelected: function(id) {
this.selectedChoices['' + id] = true;
this.numSelectedChoices++;
if (this.numSelectedChoicesListener) {
this.numSelectedChoicesListener();
}
},
// track that the user now removed the specified choice
untrackSelected: function(id) {
this.selectedChoices['' + id] = null;
this.numSelectedChoices--;
if (this.numSelectedChoicesListener) {
this.numSelectedChoicesListener();
}
},
// returns the first 10 elements of the choices array that match searchString and are not already selected
findCandidates: function(searchString) {
var results = new Array();
if (searchString.length > 0) {
for (var i = 0; i < this.choices.length; i++) {
if (this.choices[i][0].toLowerCase().indexOf(searchString.toLowerCase()) != -1 &&
!this.isSelected(this.choices[i][2])) {
results.push(this.choices[i]);
if (results.length == 10) {
break;
}
}
}
}
return results;
},
// given an array of candidates, resturns the corresponding HTML
// using and - , with searchString bolded
arrayCandidatesToHtml: function(a, searchString) {
if (a.length == 0) {
return ''; // avoid even including ul when there are no candidates
}
var buf = '
';
for (var i = 0; i < a.length; i++) {
buf += "- " + boldSubstring(a[i][0], searchString) +
(a[i][1] ? (' (' + a[i][1] + ')') : '') + "
";
}
buf += '
';
return buf;
}
}
Slideshow = Class.create();
Slideshow.prototype = {
hasFirebug: "console" in window && "firebug" in window.console && window.console.firebug.indexOf("1.0") > -1,
initialize: function(slides, options) {
this.debug = options.debug || false;
this.showDuration = options.showDuration || 5000;
this.fadeDuration = options.fadeDuration || 850;
this.fadeDuration = this.fadeDuration / 1000;
this.slides = slides;
this.preloadImageArray = Array(this.slides.length);
this.displayIndex = 0;
this.timeOutHandle = null;
this.contentId = options.contentId;
if(this.slides.length >= 2) {
this.start();
}
else if(this.slides.length == 1) {
this.updateSlideContent();
}
},
start: function() {
Event.observe($(this.contentId), "mouseover", this.onContentAreaMouseOver.bindAsEventListener(this));
Event.observe($(this.contentId), "mouseout", this.onContentAreaMouseOut.bindAsEventListener(this));
this.displaySlide();
},
displaySlide: function() {
this.updateSlideContent();
Effect.Appear(this.contentId, { to: .99, duration: this.fadeDuration, afterFinish: this.setNextSlideTimeout.bind(this) });
this.preloadImage(this.getNextIndex());
},
nextSlide: function() {
this.displayIndex = this.getNextIndex();
Effect.Fade(this.contentId, { to: 0.1, duration: this.fadeDuration, afterFinish: this.displaySlide.bind(this) })
},
updateSlideContent: function() {
$(this.contentId).update(this.slides[this.displayIndex].content);
},
getNextIndex: function() {
return ((this.displayIndex == (this.slides.length - 1)) ? 0 : this.displayIndex + 1);
},
setNextSlideTimeout: function() {
if(this.timeOutHandle) {
clearTimeout(this.timeOutHandle);
}
this.timeOutHandle = setTimeout(this.nextSlide.bind(this), this.showDuration);
},
preloadImage: function(index) {
if(!this.preloadImageArray[index]) {
// store image in cache
this.preloadImageArray[index] = new Image();
this.preloadImageArray[index].src = this.slides[index].path;
}
else {
// already cached
}
},
onContentAreaMouseOver: function() {
// pause slideshow
if(this.timeOutHandle) {
clearTimeout(this.timeOutHandle);
}
},
onContentAreaMouseOut: function() {
// unpause slideshow
this.setNextSlideTimeout();
},
log: function(msg) {
if(this.hasFirebug) {
console.log(msg);
}
else if($('log')) {
$('log').value += msg + "\n";
}
}
}
var setAutoSize = function() {
$$('textarea.autosize').each(function(inputElement) {
var textarea = $(inputElement);
var initialHeight = textarea.getHeight();
var currentHeight = -1;
var currentTimer = false;
var div = $div({id: textarea.id + '_hidden'});
textarea.insert({'after': div});
div.setStyle({'display' : 'none',
'width' : textarea.getWidth() ?
(textarea.getWidth() + "px") :
textarea.getStyle('width'),
'whiteSpace' : 'pre-wrap',
'fontFamily' : textarea.getStyle('fontFamily'),
'fontSize' : textarea.getStyle('fontSize'),
'lineHeight' : textarea.getStyle('lineHeight'),
'paddingTop' : textarea.getStyle('paddingTop'),
'paddingLeft' : textarea.getStyle('paddingLeft'),
'paddingRight' : textarea.getStyle('paddingRight'),
'paddingBottom' : textarea.getStyle('paddingBottom'),
'marginTop' : textarea.getStyle('marginTop'),
'marginLeft' : textarea.getStyle('marginLeft'),
'marginRight' : textarea.getStyle('marginRight'),
'marginBottom' : textarea.getStyle('marginBottom'),
'borderTop' : textarea.getStyle('borderTop'),
'borderLeft' : textarea.getStyle('borderLeft'),
'borderRight' : textarea.getStyle('borderRight'),
'borderBottom' : textarea.getStyle('borderBottom')
});
var timerHandler = function() {
currentTimer = false;
if(initialHeight == 0) {
initialHeight = textarea.getHeight();
}
div.innerHTML = $F(textarea).replace(/&/g, '&')
.replace(/') +
'
z';
var newHeight = Math.max(initialHeight, div.getHeight());
if(newHeight != currentHeight && newHeight != 0) {
textarea.setStyle({ 'height': newHeight + 'px' });
currentHeight = newHeight;
}
}
var eventHandler = function(ev) {
if(!currentTimer) {
currentTimer = true;
setTimeout(timerHandler, 250);
}
}
textarea.observe('change', eventHandler);
textarea.observe('keyup', eventHandler);
timerHandler();
});
};
Event.onReady(setAutoSize);
/*
------------------------------------
PVII Menu CSS Express Drop-Down Menu
by Project Seven Development
www.projectseven.com
------------------------------------
*/
function P7_ExpMenu(){ //v1.1.0.2 by PVII-www.projectseven.com
if(navigator.appVersion.indexOf("MSIE")==-1){return;}
var i,k,g,lg,r=/\s*p7hvr/,nn='',c,cs='p7hvr',bv='p7menubar';
for(i=0;i<10;i++){g=document.getElementById(bv+nn);if(g){
lg=g.getElementsByTagName("LI");if(lg){for(k=0;k