脚本源代码：
<img src="http://www.blueidea.com/articleimg/usericon/Sheneyan.gif" width="32" height="32" onclick="this.src=(this.src=='http://www.blueidea.com/articleimg/usericon/Sheneyan.gif'?'http://www.blueidea.com/articleimg/usericon/marvellous.gif':'http://www.blueidea.com/articleimg/usericon/Sheneyan.gif')" />
