function nTabs(thisObj,Num){
if(thisObj.className == "active")return;
var tabObj = thisObj.parentNode.id;
var tabList = document.getElementById(tabObj).getElementsByTagName("h2");
for(i=0; i <tabList.length; i++)
{
if (i == Num)
{
   thisObj.className = "active"; 
      document.getElementById(tabObj+"_Content"+i).style.display = "block";
}else{ 
   tabList[i].className = "normal"; 
//   		if(document.getElementById(tabObj+"_Content"+i))
//		{
      		document.getElementById(tabObj+"_Content"+i).style.display = "none";
//		}
}
} 
}