<input type="hidden" name="sender[$content[id]]" value="$content[sender]" />
<input type="hidden" name="url[$content[id]]" value="$content[url]" />
</td>
<input type="hidden" name="sender[$content[id]]" value="$content[sender]" />
<input type="hidden" name="url[$content[id]]" value="$content[url]" />
</td>