<option value="50">50</option>
<option value="100">100</option>
<option value="500" selected="selected">500</option>
<option value="1000">1000</option>
<option value="5000">5000</option>
</select>
<option value="50">50</option>
<option value="100">100</option>
<option value="500" selected="selected">500</option>
<option value="1000">1000</option>
<option value="5000">5000</option>
</select>