Array.prototype.inArray = function (value) {
	var i;
	for (i=0; i < this.length; i++) {
		if (this[i] === value) {
			return true;
		}
	}
	return false;
};

function addEvent( obj, type, fn ) {
	if (obj.addEventListener) {
		obj.addEventListener( type, fn, false );
		EventCache.add(obj, type, fn);
	}
	else if (obj.attachEvent) {
		obj["e"+type+fn] = fn;
		obj[type+fn] = function() { obj["e"+type+fn]( window.event ); }
		obj.attachEvent( "on"+type, obj[type+fn] );
		EventCache.add(obj, type, fn);
	}
	else {
		obj["on"+type] = obj["e"+type+fn];
	}
}
	
var EventCache = function(){
	var listEvents = [];
	return {
		listEvents : listEvents,
		add : function(node, sEventName, fHandler){
			listEvents.push(arguments);
		},
		flush : function(){
			var i, item;
			for(i = listEvents.length - 1; i >= 0; i = i - 1){
				item = listEvents[i];
				if(item[0].removeEventListener){
					item[0].removeEventListener(item[1], item[2], item[3]);
				};
				if(item[1].substring(0, 2) != "on"){
					item[1] = "on" + item[1];
				};
				if(item[0].detachEvent){
					item[0].detachEvent(item[1], item[2]);
				};
				item[0][item[1]] = null;
			};
		}
	};
}();
addEvent(window,'unload',EventCache.flush);


function addFavorite(site_url,site_name)
{
 var the_pagetitle=site_name;
 var the_pageurl=site_url;
 if(the_pageurl=="")
 {
  the_pageurl=window.location.href;
 }
 if(the_pagetitle=="")
 { 
  the_pagetitle=document.title;
 }
 //window.external.addFavorite(the_pageurl,the_pagetitle);
 if (window.sidebar) {
  window.sidebar.addPanel(the_pagetitle,the_pageurl,"");    
 } else if(document.all) {
  //alert(window.external);
  window.external.addFavorite(the_pageurl,the_pagetitle);
  //window.external.addFavorite('http://www.jzread.com','我的网站名称');
 } else if(window.opera && window.print) {  
  return true;   
 }
}