| /** |
| * This software is licensed under the Creative Commons Licence 2.5 |
| * http://creativecommons.org/licenses/by/2.5/ |
| * |
| * addEvent written by Dean Edwards, 2005 |
| * with input from Tino Zijdel |
| * |
| * http://dean.edwards.name/weblog/2005/10/add-event/ |
| **/ |
| function addEvent(element, type, handler) { |
| // assign each event handler a unique ID |
| if (!handler.$$guid) handler.$$guid = addEvent.guid++; |
| // create a hash table of event types for the element |
| if (!element.events) element.events = {}; |
| // create a hash table of event handlers for each element/event pair |
| var handlers = element.events[type]; |
| if (!handlers) { |
| handlers = element.events[type] = {}; |
| // store the existing event handler (if there is one) |
| if (element["on" + type]) { |
| handlers[0] = element["on" + type]; |
| } |
| } |
| // store the event handler in the hash table |
| handlers[handler.$$guid] = handler; |
| // assign a global event handler to do all the work |
| element["on" + type] = handleEvent; |
| }; |
| // a counter used to create unique IDs |
| addEvent.guid = 1; |
| |
| function removeEvent(element, type, handler) { |
| // delete the event handler from the hash table |
| if (element.events && element.events[type]) { |
| delete element.events[type][handler.$$guid]; |
| } |
| }; |
| |
| function handleEvent(event) { |
| var returnValue = true; |
| // grab the event object (IE uses a global event object) |
| event = event || fixEvent(window.event); |
| // get a reference to the hash table of event handlers |
| var handlers = this.events[event.type]; |
| // execute each event handler |
| for (var i in handlers) { |
| this.$$handleEvent = handlers[i]; |
| if (this.$$handleEvent(event) === false) { |
| returnValue = false; |
| } |
| } |
| return returnValue; |
| }; |
| |
| function fixEvent(event) { |
| // add W3C standard event methods |
| event.preventDefault = fixEvent.preventDefault; |
| event.stopPropagation = fixEvent.stopPropagation; |
| return event; |
| }; |
| fixEvent.preventDefault = function() { |
| this.returnValue = false; |
| }; |
| fixEvent.stopPropagation = function() { |
| this.cancelBubble = true; |
| }; |
| |
| // end from Dean Edwards |
| |
| |
| /** |
| * Creates an Element for insertion into the DOM tree. |
| * From http://simon.incutio.com/archive/2003/06/15/javascriptWithXML |
| * |
| * @param element the element type to be created. |
| * e.g. ul (no angle brackets) |
| **/ |
| function createElement(element) { |
| if (typeof document.createElementNS != 'undefined') { |
| return document.createElementNS('http://www.w3.org/1999/xhtml', element); |
| } |
| if (typeof document.createElement != 'undefined') { |
| return document.createElement(element); |
| } |
| return false; |
| } |
| |
| /** |
| * "targ" is the element which caused this function to be called |
| * from http://www.quirksmode.org/js/events_properties.html |
| **/ |
| function getEventTarget(e) { |
| var targ; |
| if (!e) { |
| e = window.event; |
| } |
| if (e.target) { |
| targ = e.target; |
| } else if (e.srcElement) { |
| targ = e.srcElement; |
| } |
| if (targ.nodeType == 3) { // defeat Safari bug |
| targ = targ.parentNode; |
| } |
| |
| return targ; |
| } |
| |
| function confirmAction(id, url) { |
| //TODO i18n messages |
| var select = document.getElementById(id); |
| var selectedIndex = select.selectedIndex; |
| if (select.selectedIndex == 0) { |
| alert("Please select a value"); |
| return; |
| } |
| var value = select.options[selectedIndex].value; |
| url = url.replace(/%target%/gi, value); |
| if (confirm("Are you sure?")) |
| location.href=url; |
| } |