var LastLeftID = "";

function menuFix() {
	var obj = document.getElementById("nav").getElementsByTagName("li");
	
	for (var i=0; i<obj.length; i++) {
		obj[i].onmouseover=function() {
			this.className+=(this.className.length>0? " ": "") + "sfhover";
		}
		obj[i].onMouseDown=function() {
			this.className+=(this.className.length>0? " ": "") + "sfhover";
		}
		obj[i].onMouseUp=function() {
			this.className+=(this.className.length>0? " ": "") + "sfhover";
		}
		obj[i].onmouseout=function() {
			this.className=this.className.replace(new RegExp("( ?|^)sfhover\\b"), "");
		}
	}
}

function DoMenu(emid)
{
	var obj = document.getElementById(emid);	
	obj.className = (obj.className.toLowerCase() == "expanded"?"collapsed":"expanded");
	if((LastLeftID!="")&&(emid!=LastLeftID))	//关闭上一个Menu
	{
		document.getElementById(LastLeftID).className = "collapsed";
	}
	LastLeftID = emid;
}

function GetMenuID()
{

	var MenuID="";
	var _paramStr = new String(window.location.href);

	var _sharpPos = _paramStr.indexOf("#");
	
	if (_sharpPos >= 0 && _sharpPos < _paramStr.length - 1)
	{
		_paramStr = _paramStr.substring(_sharpPos + 1, _paramStr.length);
	}
	else
	{
		_paramStr = "";
	}
	
	if (_paramStr.length > 0)
	{
		var _paramArr = _paramStr.split("&");
		if (_paramArr.length>0)
		{
			var _paramKeyVal = _paramArr[0].split("=");
			if (_paramKeyVal.length>0)
			{
				MenuID = _paramKeyVal[1];
			}
		}
		/*
		if (_paramArr.length>0)
		{
			var _arr = new Array(_paramArr.length);
		}
		
		//取所有#后面的，菜单只需用到Menu
		//for (var i = 0; i < _paramArr.length; i++)
		{
			var _paramKeyVal = _paramArr[i].split('=');
			
			if (_paramKeyVal.length>0)
			{
				_arr[_paramKeyVal[0]] = _paramKeyVal[1];
			}		
		}
		*/
	}
	
	if(MenuID!="")
	{
		DoMenu(MenuID)
	}
}

GetMenuID();	//*这两个function的顺序要注意一下，不然在Firefox里GetMenuID()不起效果
menuFix();
