var cbo = new CallBackObject();
			cbo.OnComplete = Cbo_CompleteGetuser2;
			cbo.onError = Cbo_ErrorGetUser2;
			cbo.DoCallBack("http://"+location.host+"/page/userlogin.asp?action=userinfo");


function Cbo_CompleteGetuser2(responseText, responseXML)
		{
			 var xml = responseXML;
			 var objselect = xml.selectNodes("//objselect");//找到是第几个User变化
			 if (objselect[0].text == "guest" || objselect[0].text == ""){
                window.location.href = "/page/login.asp"
				 }	 
			
				  
          
	    }
		
		function Cbo_ErrorGetUser2(status, statusText, responseText)
		{
			alert(responseText);
		}