including a loop into an xsl file

[php]

Hello,

i need to insert a loop into an XSL file at a
HTML block <SELECT> so that it generates n lines as :
<option value='n'>n</option>

the following code doesn't work :

<xsl:eval>doSelect(1,31,1)</xsl:eval>

, using a doSelect() function defined within the
<xsl:script><![CDATA[ ... block

Any idea would be of great help,
Thanks in advance,

Philippe