var LastLeftID = "";
function menuFix() {
	var obj = document.getElementById("nav_about").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();



function MM_swapImgRestore() { //v3.0
  var i,x,a=document.MM_sr; for(i=0;a&&i<a.length&&(x=a[i])&&x.oSrc;i++) x.src=x.oSrc;
}
function MM_preloadImages() { //v3.0
  var d=document; if(d.images){ if(!d.MM_p) d.MM_p=new Array();
    var i,j=d.MM_p.length,a=MM_preloadImages.arguments; for(i=0; i<a.length; i++)
    if (a[i].indexOf("#")!=0){ d.MM_p[j]=new Image; d.MM_p[j++].src=a[i];}}
}

function MM_findObj(n, d) { //v4.01
  var p,i,x;  if(!d) d=document; if((p=n.indexOf("?"))>0&&parent.frames.length) {
    d=parent.frames[n.substring(p+1)].document; n=n.substring(0,p);}
  if(!(x=d[n])&&d.all) x=d.all[n]; for (i=0;!x&&i<d.forms.length;i++) x=d.forms[i][n];
  for(i=0;!x&&d.layers&&i<d.layers.length;i++) x=MM_findObj(n,d.layers[i].document);
  if(!x && d.getElementById) x=d.getElementById(n); return x;
}

function MM_swapImage() { //v3.0
  var i,j=0,x,a=MM_swapImage.arguments; document.MM_sr=new Array; for(i=0;i<(a.length-2);i+=3)
   if ((x=MM_findObj(a[i]))!=null){document.MM_sr[j++]=x; if(!x.oSrc) x.oSrc=x.src; x.src=a[i+2];}
}
function MM_openBrWindow(theURL,winName,features) { //v2.0
  window.open(theURL,winName,features);
}