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";
		}
	} 
}