<html><head><meta http-equiv="Content-Type" content="text/html; charset=gb2312"><title>利用鼠标中键缩放图片</title>
<script language="JavaScript">
function bbimg(o){
var zoom=parseInt(o.style.zoom, 10)||100; zoom+=event.wheelDelta/12; if (zoom>0) o.style.zoom=zoom+'%'; return false;
}</script></head><body><center><img src="uploadfile/2005115214625668.JPG" onload="if(this.width>200)this.width=200" onmousewheel = "bbimg(this);"></center></body></html>