function nTabs(tabObj,obj){
        var tabList = document.getElementById(tabObj).getElementsByTagName("li");
        for(i=0; i <tabList.length; i++)
        {
                if (tabList[i].id == obj.id)
                {
                    document.getElementById(tabObj+"_"+i).className = "b"; 
					document.getElementById(tabObj+"_Content"+i).style.display = "block";
                }else{
                    document.getElementById(tabObj+"_"+i).className = "a"; 
					document.getElementById(tabObj+"_Content"+i).style.display = "none";
                }
        } 
}