如何把覆盖在弹出大图上的小图去掉

如何把覆盖在弹出大图上的小图去掉，在下是设计出身。脚本能力不行，恳请大家看下！
<!DOCTYPE html PUBLIC "-//W3C//DTD XHTML 1.0 Transitional//EN" "http://www.w3.org/TR/xhtml1/DTD/xhtml1-transitional.dtd">
<html xmlns="http://www.w3.org/1999/xhtml">
<head>
<meta http-equiv="Content-Type" content="text/html; charset=utf-8" />
<meta name="keywords" content= "shanghai|quintet|RFID|PAD|Handheld|UHF">
<title>Quintet Digital Corporation 群淂数码科技(上海)有限公司</title>
<SCRIPT language=javascript src="menu.js" type=text/javascript></SCRIPT><style type="text/css">
*{margin:0; padding:0;}  /*---html所有元素---*/
body,html{margin:0px; padding:0px; background-color:#ffffff;}img{border:0px;}
#demo{overflow:hidden;width:auto; text-align:center;padding:0px;}
#demo img{border:none; width:98px; height:98px;}   /* border:5px solid #f4f4f4 */
#enlarge_images{position:absolute; width:300px; height:300px; background-color:#CCCCCC; display:none; z-index:2;}   /* border:5px solid #f4f4f4 */#demo1{overflow:hidden;width:auto; text-align:center;padding:0px;}
#demo1 img{border:none; width:98px; height:98px;}   /* border:5px solid #f4f4f4 */
#enlarge1_images{position:absolute; width:300px; height:300px; background-color:#CCCCCC; display:none; z-index:2;}   /* border:5px solid #f4f4f4 */</style>
</head><body>    
<ul id="body3">
    <li>
<div class="w_box2">
    <table width="100%" border="0" cellspacing="0" cellpadding="0">
    <tr>
    <td width="50%" height="30"><a class="span">Batteries</a></td>
    <td><a class="span">Charger Box</a></td>
    </tr>
    <tr>
    <td>
        <table width="100%" border="0" cellspacing="6" cellpadding="2">
        <tr>
        <td width="30%"  valign="top">
        <div id ="demo" style="overflow:hidden; text-align:center; padding:0px">
        <img src="..images/p-1-s.jpg" width="98" height="98"/></div>
        
        <div id="enlarge_images"></div> 
        
<script>
var demo = document.getElementById("demo");
var gg = demo.getElementsByTagName("img");
var ei = document.getElementById("enlarge_images");
for(i=0; i<gg.length; i++){
var ts = gg[i];
ts.onmousemove = function(event){
event = event || window.event;
ei.style.display = "block";
ei.innerHTML = '<img src="' + this.src + '" />';
ei.style.top  = document.body.scrollTop + event.clientY + 10 + "px";
ei.style.left = document.body.scrollLeft + event.clientX + 10 + "px";
}
ts.onmouseout = function(){
ei.innerHTML = "";
ei.style.display = "none";
}
ts.onclick = function(){
window.open( this.src );
}
}
</script>        </td>
        <td width="70%"  align="left"  valign="top" >
            <a href="#" class="span2">Battery Pack QBP-232-010</a><br/>
            <a>A standard capacity (1800 mAh x &nbsp;&nbsp;7.4V) Lithium Ion battery pack for &nbsp;&nbsp;your C35A. </a>        
        </td>
        </tr>
        </table>
    </td>
    <td>
        <table width="100%" border="0" cellspacing="6" cellpadding="2">
        
        <tr>
        <td width="30%"  valign="top"><div align="center"><a href="pic.html" target="_blank"><img src="images/p-2-s.jpg" width="98" height="98" /></a></div></td>
        <td width="70%"  align="left" valign="top">
            <a href="#" class="span2">Charger Box QCB-332-021</a><br/>
            <a>Double slots battery charger suited &nbsp;&nbsp;for charging two QBP-232-&nbsp;&nbsp;010&nbsp;&nbsp;battery packs simutaneously. </a>        
        </td>
        </tr>
        </table>
    </td>
    </tr>
    </table>
    </div>
      <div class="w_box2">
    <table width="100%" border="0" cellspacing="0" cellpadding="0">
    <tr>
    <td width="50%" height="30"><a class="span">Docking Station</a></td>
    <td><a class="span">Hand Strap</a></td>
    </tr>
    <tr>
    <td>
        <table width="100%" border="0" cellspacing="6" cellpadding="2">
        <tr>
        <td width="30%"  valign="top"><div align="center"><a href="pic.html" target="_blank"><img src="images/p-3-s.jpg" width="98" height="98" /></a></div></td>
        <td width="70%"  align="left"  valign="top" >
            <a href="#" class="span2">Docking Station QDB-432-021</a><br/>
            <a>Double-slot cradle, one slot for &nbsp;&nbsp;QBP&nbsp;-232-010 battery pack charging &nbsp;&nbsp;and the other slot for C35A with &nbsp;&nbsp;charging function and external &nbsp;&nbsp; &nbsp;&nbsp;connectivities extension. </a> 
        </td>
        </tr>
        </table>
    </td>
    <td>
        <table width="100%" border="0" cellspacing="6" cellpadding="2">
        <tr>
        <td width="30%"  valign="top"><div align="center"><a href="pic.html" target="_blank"><img src="images/p-5-s.jpg" width="98" height="98" /></a></div></td>
        <td width="70%"  align="left" valign="top">
            <a href="#" class="span2">Hand Strap QHS-632-011</a><br/>
            <a>single-slot cradle and universal cable &nbsp;&nbsp;adapter to connect to the power &nbsp;&nbsp;supply of the C35A RFID. </a>        
        </td>
        </tr>
        </table>
    </td>
    </tr>
    </table>
    </div>
    
    <div class="w_box2">
    <table width="100%" border="0" cellspacing="0" cellpadding="0">
    <tr>
    <td width="50%" height="30"><a class="span">RS-232 Cable</a></td>
    <td>&nbsp;</td>
    </tr>
    <tr>
    <td>
        <table width="100%" border="0" cellspacing="6" cellpadding="2">
        <tr>
        <td width="30%"  valign="top"><div align="center"><a href="pic.html" target="_blank"><img src="images/p-4-s.jpg" width="98" height="98" /></a></div></td>
        <td width="70%"  align="left" valign="top">
            <a href="#" class="span2">RS-232 Cable QRS-532-012 </a><br/>
            <a>The functionality of your C35A &nbsp;&nbsp;mobile computer can be enhanced by &nbsp;&nbsp;giving it the power to connect to &nbsp;&nbsp;peripherals.</a>        
        </td>
        </tr>
        </table>
    </td>
    <td>
        <table width="100%" border="0" cellspacing="6" cellpadding="2">
        <tr>
        <td width="30%"  valign="top"></td>
        <td width="70%"  align="left" valign="top">
                   
        </td>
        </tr>
        </table>
    </td>
    </tr>
    </table>
    </div>
    </li>
    </ul>
    
    
    
  
</body>
</html>