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";
	  }
	} 
}

function tabit(btn){
	var idname = new String(btn.id);
	var s = idname.indexOf("_");
	var e = idname.lastIndexOf("_")+1;
	var tabName = idname.substr(0, s);
	var id = parseInt(idname.substr(e, 1));
	var tabNumber = btn.parentNode.childNodes.length;
	for(i=0;i<tabNumber;i++){
			document.getElementById(tabName+"_div_"+i).style.display = "none";
			document.getElementById(tabName+"_btn_"+i).className = "";
		};
		document.getElementById(tabName+"_div_"+id).style.display = "block";
		btn.className = "curr";
};