<!DOCTYPE html PUBLIC "-//W3C//DTD XHTML 1.0 Transitional//EN" "http://www.w3.org/TR/xhtml1/DTD/xhtml1-transitional.dtd">
<html xmlns="http://www.w3.org/1999/xhtml">
<head>
<meta http-equiv="Content-Type" content="text/html; charset=utf-8" />
<title>无标题文档</title>
<script>
window.onload=function ()
{
var oForm=document.getElementById(‘form1‘);
var oUser=document.getElementsByName(‘user‘)[0];
var oPass=document.getElementsByName(‘pass‘)[0];
oForm.onsubmit=function ()
{
if(oUser.value==‘‘ || oPass.value==‘‘)
{
alert(‘您填错了‘);
return false;
}
};
oForm.onreset=function ()
{
/*if(confirm(‘是否要清空？‘))
{
return true;
}
else
{
return false;
}*/
return confirm(‘是否要清空？‘);
};
};
</script>
</head>
<body>
<form id="form1" action="http://www.miaov.com/" method="get">
用户名：<input type="text" name="user" />
密码：<input type="password" name="pass" />
<input type="submit" value="提交" />
<input type="reset" value="重置" />
</form>
</body>
</html>
原文：http://www.cnblogs.com/hduhdc/p/5367111.html