id is variable in this example. It only work on IE
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  id is string. following sample works on both IE and Netscape
Line1 on Line2 on
| TH: click to change lines | 
|---|
| Line 1 1 1 1 1 1 | 
| Line 2 2 2 2 2 2 | 
Div 1 Div 2
| Box in div 1 | 
| Box in div 2 | 
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