案例：javascript案例     状态：可编辑再运行    进入竖版
 运行结果　
​x
 
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<html>
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<head>
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<script type="text/javascript">
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function changeAction()
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{
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var x=document.getElementById("myForm")
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alert("Original action: " + x.action)
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x.action="/example/html/form_action.aspx"
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alert("New action: " + x.action)
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x.submit()
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}
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</script>
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</head>
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<body>
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​
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<form id="myForm" action="/img/eg_smile.gif">
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名称：<input type="text" value="米老鼠" />
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<input type="button" onclick="changeAction()"
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value="改变 action 属性并提交表单" />
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</form>
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​
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</body>
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</html>