js改变图片大小——把鼠标放图片上,滚动鼠标滚轮.

<script language="JavaScript"><!--//改变图片大小function resizepic(thispic){if(thispic.width>700) thispic.width=700;}//无级缩放图片大小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><P align=center><IMG onmousewheel="return bbimg(this)" height=341 src="photo.gif" onload=javascript:resizepic(this) border=0></P>