/*Copyright (c) 2007, Yahoo! Inc. All rights reserved.Code licensed under the BSD License:http://developer.yahoo.net/yui/license.txtversion: 2.3.0*/YAHOO.util.CustomEvent=function(type,oScope,silent,signature){this.type=type;this.scope=oScope||window;this.silent=silent;this.signature=signature||YAHOO.util.CustomEvent.LIST;this.subscribers=[];if(!this.silent){}var onsubscribeType="_YUICEOnSubscribe";if(type!==onsubscribeType){this.subscribeEvent=new YAHOO.util.CustomEvent(onsubscribeType,this,true);}};YAHOO.util.CustomEvent.LIST=0;YAHOO.util.CustomEvent.FLAT=1;YAHOO.util.CustomEvent.prototype={subscribe:function(fn,obj,override){if(!fn){throw new Error("Invalid callback for subscriber to '"+this.type+"'");}if(this.subscribeEvent){this.subscribeEvent.fire(fn,obj,override);}this.subscribers.push(new YAHOO.util.Subscriber(fn,obj,override));},unsubscribe:function(fn,obj){if(!fn){return this.unsubscribeAll();}var found=false;for(var i=0,len=this.subscribers.length;i<len;++i){var s=this.subscribers[i];if(s&&s.contains(fn,obj)){this._delete(i);found=true;}}return found;},fire:function(){var len=this.subscribers.length;if(!len&&this.silent){return true;}var args=[],ret=true,i,rebuild=false;for(i=0;i<arguments.length;++i){args.push(arguments[i]);}var argslength=args.length;if(!this.silent){}for(i=0;i<len;++i){var s=this.subscribers[i];if(!s){rebuild=true;}else{if(!this.silent){}var scope=s.getScope(this.scope);if(this.signature==YAHOO.util.CustomEvent.FLAT){var param=null;if(args.length>0){param=args[0];}ret=s.fn.call(scope,param,s.obj);}else{ret=s.fn.call(scope,this.type,args,s.obj);}if(false===ret){if(!this.silent){}return false;}}}if(rebuild){var newlist=[],subs=this.subscribers;for(i=0,len=subs.length;i<len;++i){s=subs[i];newlist.push(subs[i]);}this.subscribers=newlist;}return true;},unsubscribeAll:function(){for(var i=0,len=this.subscribers.length;i<len;++i){this._delete(len-1-i);}this.subscribers=[];return i;},_delete:function(index){var s=this.subscribers[index];if(s){delete s.fn;delete s.obj;}this.subscribers[index]=null;},toString:function(){return"CustomEvent: "+"'"+this.type+"', "+"scope: "+this.scope;}};YAHOO.util.Subscriber=function(fn,obj,override){this.fn=fn;this.obj=YAHOO.lang.isUndefined(obj)?null:obj;this.override=override;};YAHOO.util.Subscriber.prototype.getScope=function(defaultScope){if(this.override){if(this.override===true){return this.obj;}else{return this.override;}}return defaultScope;};YAHOO.util.Subscriber.prototype.contains=function(fn,obj){if(obj){return(this.fn==fn&&this.obj==obj);}else{return(this.fn==fn);}};YAHOO.util.Subscriber.prototype.toString=function(){return"Subscriber { obj: "+this.obj+", override: "+(this.override||"no")+" }";};if(!YAHOO.util.Event){YAHOO.util.Event=function(){var loadComplete=false;var DOMReady=false;var listeners=[];var unloadListeners=[];var legacyEvents=[];var legacyHandlers=[];var retryCount=0;var onAvailStack=[];var legacyMap=[];var counter=0;var webkitKeymap={63232:38,63233:40,63234:37,63235:39};return{POLL_RETRYS:4000,POLL_INTERVAL:10,EL:0,TYPE:1,FN:2,WFN:3,OBJ:3,ADJ_SCOPE:4,lastError:null,isSafari:YAHOO.env.ua.webkit,webkit:YAHOO.env.ua.webkit,isIE:YAHOO.env.ua.ie,_interval:null,startInterval:function(){if(!this._interval){var self=this;var callback=function(){self._tryPreloadAttach();};this._interval=setInterval(callback,this.POLL_INTERVAL);}},onAvailable:function(p_id,p_fn,p_obj,p_override){onAvailStack.push({id:p_id,fn:p_fn,obj:p_obj,override:p_override,checkReady:false});retryCount=this.POLL_RETRYS;this.startInterval();},onDOMReady:function(p_fn,p_obj,p_override){if(DOMReady){setTimeout(function(){var s=window;if(p_override){if(p_override===true){s=p_obj;}else{s=p_override;}}p_fn.call(s,"DOMReady",[],p_obj);},0);}else{this.DOMReadyEvent.subscribe(p_fn,p_obj,p_override);}},onContentReady:function(p_id,p_fn,p_obj,p_override){onAvailStack.push({id:p_id,fn:p_fn,obj:p_obj,override:p_override,checkReady:true});retryCount=this.POLL_RETRYS;this.startInterval();},addListener:function(el,sType,fn,obj,override){if(!fn||!fn.call){return false;}if(this._isValidCollection(el)){var ok=true;for(var i=0,len=el.length;i<len;++i){ok=this.on(el[i],sType,fn,obj,override)&&ok;}return ok;}else if(YAHOO.lang.isString(el)){var oEl=this.getEl(el);if(oEl){el=oEl;}else{this.onAvailable(el,function(){YAHOO.util.Event.on(el,sType,fn,obj,override);});return true;}}if(!el){return false;}if("unload"==sType&&obj!==this){unloadListeners[unloadListeners.length]=[el,sType,fn,obj,override];return true;}var scope=el;if(override){if(override===true){scope=obj;}else{scope=override;}}var wrappedFn=function(e){return fn.call(scope,YAHOO.util.Event.getEvent(e),obj);};var li=[el,sType,fn,wrappedFn,scope];var index=listeners.length;listeners[index]=li;if(this.useLegacyEvent(el,sType)){var legacyIndex=this.getLegacyIndex(el,sType);if(legacyIndex==-1||el!=legacyEvents[legacyIndex][0]){legacyIndex=legacyEvents.length;legacyMap[el.id+sType]=legacyIndex;legacyEvents[legacyIndex]=[el,sType,el["on"+sType]];legacyHandlers[legacyIndex]=[];el["on"+sType]=function(e){YAHOO.util.Event.fireLegacyEvent(YAHOO.util.Event.getEvent(e),legacyIndex);};}legacyHandlers[legacyIndex].push(li);}else{try{this._simpleAdd(el,sType,wrappedFn,false);}catch(ex){this.lastError=ex;this.removeListener(el,sType,fn);return false;}}return true;},fireLegacyEvent:function(e,legacyIndex){var ok=true,le,lh,li,scope,ret;lh=legacyHandlers[legacyIndex];for(var i=0,len=lh.length;i<len;++i){li=lh[i];if(li&&li[this.WFN]){scope=li[this.ADJ_SCOPE];ret=li[this.WFN].call(scope,e);ok=(ok&&ret);}}le=legacyEvents[legacyIndex];if(le&&le[2]){le[2](e);}return ok;},getLegacyIndex:function(el,sType){var key=this.generateId(el)+sType;if(typeof legacyMap[key]=="undefined"){return-1;}else{return legacyMap[key];}},useLegacyEvent:function(el,sType){if(this.webkit&&("click"==sType||"dblclick"==sType)){var v=parseInt(this.webkit,10);if(!isNaN(v)&&v<418){return true;}}return false;},removeListener:function(el,sType,fn){var i,len;if(typeof el=="string"){el=this.getEl(el);}else if(this._isValidCollection(el)){var ok=true;for(i=0,len=el.length;i<len;++i){ok=(this.removeListener(el[i],sType,fn)&&ok);}return ok;}if(!fn||!fn.call){return this.purgeElement(el,false,sType);}if("unload"==sType){for(i=0,len=unloadListeners.length;i<len;i++){var li=unloadListeners[i];if(li&&li[0]==el&&li[1]==sType&&li[2]==fn){unloadListeners[i]=null;return true;}}return false;}var cacheItem=null;var index=arguments[3];if("undefined"==typeof index){index=this._getCacheIndex(el,sType,fn);}if(index>=0){cacheItem=listeners[index];}if(!el||!cacheItem){return false;}if(this.useLegacyEvent(el,sType)){var legacyIndex=this.getLegacyIndex(el,sType);var llist=legacyHandlers[legacyIndex];if(llist){for(i=0,len=llist.length;i<len;++i){li=llist[i];if(li&&li[this.EL]==el&&li[this.TYPE]==sType&&li[this.FN]==fn){llist[i]=null;break;}}}}else{try{this._simpleRemove(el,sType,cacheItem[this.WFN],false);}catch(ex){this.lastError=ex;return false;}}delete listeners[index][this.WFN];delete listeners[index][this.FN];listeners[index]=null;return true;},getTarget:function(ev,resolveTextNode){var t=ev.target||ev.srcElement;return this.resolveTextNode(t);},resolveTextNode:function(node){if(node&&3==node.nodeType){return node.parentNode;}else{return node;}},getPageX:function(ev){var x=ev.pageX;if(!x&&0!==x){x=ev.clientX||0;if(this.isIE){x+=this._getScrollLeft();}}return x;},getPageY:function(ev){var y=ev.pageY;if(!y&&0!==y){y=ev.clientY||0;if(this.isIE){y+=this._getScrollTop();}}