<html>
<body>
<form method="get" action="http://www.jb200.com" target="box">
<input id="buttonid" type= "submit" value= "提交" />
</form>
<
iframe name="box"></iframe>
<script type="text/
javascript" src="/js/
jquery.js"></script>
<script>
$("form").submit(function() {
$("#buttonid").val("正在处理...");
$("#buttonid").attr("disabled", "disabled");
});
</script>
</body>
</html>