//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>

改成

//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>