解决validaform先验证后 ajax提交

$(".myfroms").Validform({//form class
    btnSubmit:".submitLayer",   绑定提交按钮
    tiptype:4,      //提示信息类型
    ignoreHidden:false,
    dragonfly:false,
    tipSweep:true,
    showAllError:false,
    postonce:true,
    ajaxPost:true,

            beforeCheck:function(curform){
//                var layIndex = GB.OpenPop.loading("数据提交中...");
                //在表单提交执行验证之前执行的函数，curform参数是当前表单对象。
                //这里明确return false的话将不会继续执行验证操作;
            },
            beforeSubmit:function(curform){
                var layIndex = GB.OpenPop.loading("数据提交中...");
            },
            callback:function(data){
                if(data.status == 'y'){
                    window.location.href=window.location.href;
                    GB.Topiframe.closeThreeCol();
                }else if(data.status == 'n'){
                    layer.msg('数据提交失败！');
                    GB.Topiframe.closeThreeCol();

                }
            }
        });