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();
*/