<html>
<head>
<script type="text/javascript">
function changeAction()
{
var x=document.getElementById("myForm")
alert("Original action: " + x.action)
x.action="/htmldom/index.asp"
alert("New action: " + x.action)
x.submit()
}
</script>
</head>
<body>
<form id="myForm" action="/static/demo/images/eg_smile.gif">
名称：<input type="text" value="米老鼠" />
<input type="button" onclick="changeAction()"
value="改变 action 属性并提交表单" />
</form>
</body>
</html>