function setTab(name,cursel,n){
    for(i=1;i<=n;i++){
    var menu=document.getElementById(name+i);
    var con=document.getElementById("con_"+name+"_"+i);
    menu.className=i==cursel?"hover":"";
    con.style.display=i==cursel?"block":"none";
    }
   }

   function checknenableitem(obj, urlname){
             var id = obj.options[obj.selectedIndex].value;
             Ajax.call(urlname+'?act=checkclass', 'id='+id, checkclassResponse, 'GET', 'JSON');
   }

   function checkclassResponse(result){
       if(result.error){
		  document.getElementById('parent_id').selectedIndex = 0;
	      alert(result.content);
	   }
   }

/* *
 * 帮助信息的显隐函数
 */
function showNotice(objId)
{
  var obj = document.getElementById(objId);

  if (obj)
  {
    if (obj.style.display != "block")
    {
      obj.style.display = "block";
    }
    else
    {
      obj.style.display = "none";
    }
  }
}