var _failCount=0;
function upForm(obj){
    var ret = checkLogin();
	 if(ret){
		var flag = myajax('LoginTicket','/testvalidateCode.jsp');
		if(!flag){
		  if(++_failCount==3){
			 newValidateCode('loginCheckCode');
				_failCount=0;
		 }
		}else{
			return true;
		}
	}
 
 return false;
}

  function myajax(id,url){
	var _ret=false;
  	var t_val = $("#"+id).val(); 
    $.ajax({
     type:"POST",
     async:false,
     url:url,
     data:"date="+t_val,
     success:function(msg)
     {
      var val = rtrim(trim(msg));
      if(val == "false"){
       alert("验证码错误");
        $("#"+id).select();
      } else if(val = "true"){
	_ret=true;
      }
     }
    });
	return _ret;
  }
  //去掉前空格
function trim(s){
  return s.replace(/^\s*/,""); 
}
//去掉后面空格
function rtrim(s){
  return s.replace(/\s*$/, ""); 
}