#zoomdiv{position:absolute;z-index:7;background:#ffffff;border:1px solid #333333;display:none;text-align:center;overflow:hidden;}
#zoomup{position:absolute; background:#ffffff;display:none;filter:alpha(opacity=50);opacity:.5;cursor:move;}
.zoom{width:250px;vertical-align:bottom;/*处理IE bug*/}