<center>
<table border="0" bgcolor="#FFF">
<tr>
<td align="center">
<input type="button" value=" &lt;&lt; " onclick="javascript:window.history.go(-1);" /> <input type="button" value="Arriba" onclick="document.location='#top';" /> <input type="button"
value=" &gt;&gt; " onclick="javascript:window.history.go(1);" />
</td>
</tr>
</table>
</center>