var ajax=new AjaxUtil();
var ret=false;
function validate(itemid){
	ajax.doGET("../AJAX/Validate.aspx","itemid="+itemid,CallBack,true,false);
	return ret;
}

function CallBack(){
	if(ajax.XMLHTTP.readyState==4){
	    if (ajax.XMLHTTP.status == 200) {
			if(ajax.XMLHTTP.responseText == "Success"){
				ret=true;
			}else if(ajax.XMLHTTP.responseText == "NoPurview"){
				ret=false;
				alert("对不起，您没有此权限！");
			}else if(ajax.XMLHTTP.responseText == "NotLogin"){
				ret=false;
				middle("dialogBox","/newBASite/login.aspx");
			}
		}
	}
}