ma non funziona non parte la funzione

<link href="../css/style.css" rel="stylesheet" type="text/css">
<table width="383" height="93" align="center" cellpadding="0" cellspacing="0" background="images/sfondo_newsletter.gif" class="menu">
<tr><td width="22" height="16"></td><td width="326"></td><td width="33" rowspan="2" align="left" valign="top">[img]images/freccina.gif[/img]</td>
</tr>
<tr>
<td>
<td align="right" valign="top"><form name="letters"><input type="text" name="newsletter" class="testi" style="width:120px; ">
</form></td>

</tr>
</table>