背景代码:
<img src="javascript:document.getElementById('Mlogo').innerHTML+='<div style=\'position:absolute;top:0;left:0;\'><EMBED src=\'http://media.163888.net/virtualdir1/2006/02/10/14/Flash/30935844815717.swf\' quality=high wmode=\'transparent\' WIDTH=\'927\' HEIGHT=\'657\' TYPE=\'application/x-shockwave-flash\'></div>';">
效果: