<textarea id="txt">  
<table border=1 width="20%">            
        <tr><th>title</th><th>title2</th></tr>  
           <tr rs="{id:/'section006/'}"><td>data1</td><td>data2      </td>  
           </tr>  
           <tr ><td>data1</td><td>data2</td></tr>  
</table>  
</textarea>  

<script>  
var str = document.getElementById('txt').value;  
alert(str);  
</script>