// Menu
function kadabra(zap,obj) {
 if (document.getElementById) {
  var abra = document.getElementById(zap).style;
  //Modify By wujunjie
  var ulList = document.getElementById(zap).getElementsByTagName("li");
  if(!ulList || ulList.length<=0)
    return false;
  if (abra.display == "block") {

   abra.display = "none"; 
   obj.firstChild.src = "/Themes/Default/Images/TradeRoom/gatefold2.gif";
   } else {
   abra.display = "block";	
  obj.firstChild.src = "/Themes/Default/Images/TradeRoom/gatefold1.gif";
  }
  return false;
  } else {
  return true;
 }
}