第一种方法：

如果使用的提交按钮是button 不是submit 以及服务器控件 可以在ajax返回结果之后document.getElementById('form').submit();

第二种：

@H_502_9@function BeginSubmit() { var txt = ""; jQuery.ajax({ type:"POST",async:false,//是否异步 url: "GetTotalAmount.aspx",success:function(result){ if (result.text == "false") { DIVAlert('alert','Valor\'s Minimum Order Policy is $25.00. We welcome you to continue to browse and shop on our website,and thank you for your business!',null,null); return false; } else { if (validateForm() && GetTotalAmount()) { if (jQuery('[name=outOfStack]').length > 0) { if (!confirm('Out of stock Or offline products will add to backorder,Do you want to submit Order?')) return false; } else { if (!confirm('Do you want to submit Order?')) return false; } } else { return false; } ProcessOrder(); } } }) } 参考：http://www.cnblogs.com/wugang/archive/2013/02/23/2923217.html