<div class="htmlarea"> <textarea id="runcode31979"> <input readonly ondblclick="this.readOnly=false" onchange="this.readOnly=true"> </textarea><br><input onclick="runEx('runcode31979')" type="button" value="运行代码"> <input onclick="doCopy('runcode31979')" type="button" value="复制代码"> <input onclick="doSave(runcode31979)" type="button" value="保存代码">[Ctrl+A 全选 注:<a href="http://www.jb51.net/article/23421.htm" title="查看具体详情" target="_blank">如需引入外部Js需刷新才能执行</a>]</div>