案例：javascript案例     状态：可编辑再运行    进入竖版
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<html>
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<head>
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<script type="text/javascript">
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function disable()
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  {
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  document.getElementById("gnome").disabled=true
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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>
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Human: <input id="human" type="radio" name="creature" value="Human" />
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<br />
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Animal: <input id="animal" type="radio" name="creature" value="Animal" />
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<br />
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Gnome: <input id="gnome" type="radio" name="creature" value="Gnome" />
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<br /><br />
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<input type="button" onclick="disable()" value="Disable choice" />
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</form>
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​
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</body>
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</html>
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​