function nTabs(thisObj,Num){
			if(thisObj.className == "active")return;
			var tabObj = thisObj.parentNode.id;
			var tabList = document.getElementById(tabObj).getElementsByTagName("li");
			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"; 
				document.getElementById(tabObj+"_Content"+i).style.display = "none";
			   }
			}
}