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)) //??上一?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(MenuID!="")
{
 DoMenu(MenuID)
}
}
GetMenuID(); //*???function的?序要注意一下，不然在Firefox里GetMenuID()不起效果
menuFix();