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<html> 
<head> 
<script type="text/javascript"> 
function aboveFrames(){ 
    document.getElementById('myTable').frame="above" 
} 
function belowFrames(){ 
    document.getElementById('myTable').frame="below" 
} 
</script> 
</head> 
 
<body> 
<table id="myTable"> 
    <tr> 
        <td>a</td> 
        <td>b</td> 
    </tr> 
    <tr> 
        <td>c</td> 
        <td>d</td> 
    </tr> 
</table> 
<form> 
    <input type="button" onclick="aboveFrames()" value="Show above frames"> 
    <input type="button" onclick="belowFrames()" value="Show below frames"> 
</form> 
</body> 
</html> 
 
 
 
            
          
   
    
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