问题:jquery中使用submit提交按钮时，当return false后，依然会提交表单.

解决:使用button按钮，而不是submit按钮

<script type="text/javascript" src="scripts/jquery-2.0.2.js"></script>

<script type="text/javascript">

function check(){

var npassword=$("#npassword").val();

var npassword2=$("#npassword2").val();

if(npassword==null||npassword==""){

alert("密码不能为空！");

$("#npassword").focus();

return false;

} else if(npassword2!=npassword){

alert("两次密码不一致");

$("#npassword2").attr("value","");

$("#npassword2").focus();

return false;

}else{

$("#form").submit();

}

}


</script>

</head>

<body bgcolor="#E2E4F0">

<form name="form" id="form" action="selfservice.jsp" method="post" >

<input type="hidden" name="action" value="modpassword"/>

<table border="2" align="center" >

<tr>

<td>新密码：</td>

<td><input type="password" id="npassword" name="npassword"/></td>

</tr>

<tr>

<td>确认密码：</td>

<td><input type="password" id="npassword2" name="npassword2"/></td>

</tr>

<tr>

<td><input type="button" value="提交" check();"></td>

<td><input type="reset" value="重置"></td>

</tr>

</table>

</form>

</body>