JS防重复提交

1、Enable the button

2、设置一个变量，只允许提交一次

 

实例:

JS

<mce:script type="text/javascript" src="../jquery-1.2.js" mce_src="jquery-1.2.js"></mce:script> <mce:script type="text/javascript"><!-- $(function(){ //$('#btn').attr("disabled","disabled"); $("form").submit(function(){ // $(":submit").attr("disabled","disabled"); return false; }); //防止页面后退 window.history.forward(); }); function c(){ $('#btn').attr("disabled","disabled"); } // --></mce:script> <mce:script language="javascript"><!-- var checkSubmitFlg = false; function checkSubmit() { if (!checkSubmitFlg) { checkSubmitFlg = true; return true; }else{ alert("不能重复提交"); return false; } } // --></mce:script>

 

HTML

<form action="3.1.htm" method="post" onsubmit="return checkSubmit();" > <!--onsubmit="c();"--> <input type="submit" value="submit"/> <input id="btn" type="button" value="button"/> <!-- onclick="this.disabled=true;" --> </form>