鼠标放上去图片切换效果
<script language="javascript">
function changeImg(obImg,sNewURL)
{
if(sNewURL!="") obImg.src=sNewURL;
}
</script>
<img style="cursor:hand;" src="图片地址" border="0" width="50" height="30" onmouseover="changeImg(this,'图片地址');" onmouseout="changeImg(this,'图片地址');">