XSL and HTML forms

Hello all...

I'm new using XML and XSL to generate HTML content. I'm getting problems with the value for the inputs. The XML file looks like this

<?xml version='1.0'?>
<GET>
<NAME>
<INDEX>x</INDEX>
<DATE>yyyy</DATE>
</NAME>
...
<NAME>
<INDEX>x</INDEX>
<DATE>yyyy</DATE>
</NAME>
</GET>

and the XSL file is

<?xml version="1.0" encoding="UTF-8"?>
<xsl:stylesheet xmlns:xsl="http://www.w3.org/1999/XSL/Transform" version="1.0">

<xsl:template match="GET">
<TABLE>
<xsl:apply-templates/>
</TABLE>
</xsl:template>

<xsl:template match="NAME">
<TR>
<xsl:variable name="Index">
<xsl:value-of select="INDEX" />
</xsl:variable>
<FORM NAME="Name{//Index}" METHOD="POST" ACTION="viewname.php">
<TD>
<INPUT TYPE="HIDDEN" NAME="Index" VALUE="{//Index}" />
<A HREF="javascript:document.Name{//Index}.submit();"><xsl:value-of select="DATE" /></A>
</TD>
</FORM>
</TR>
</xsl:template>

</xsl:stylesheet>

The varible 'Index' has not been replaced on transformation. What is wrong? I need to put a value in the VALUE attribute of an input.

Thanks in advance..

I reply to myself.... The wrong thing is that I'm using {//variable_name} instead of {$variable_name}. The right version is:

<?xml version="1.0" encoding="UTF-8"?>
<xsl:stylesheet xmlns:xsl="http://www.w3.org/1999/XSL/Transform" version="1.0">

<xsl:template match="GET">
<TABLE>
<xsl:apply-templates/>
</TABLE>
</xsl:template>

<xsl:template match="NAME">
<TR>
<xsl:variable name="Index">
<xsl:value-of select="INDEX" />
</xsl:variable>
<FORM NAME="Name{$Index}" METHOD="POST" ACTION="viewname.php">
<TD>
<INPUT TYPE="HIDDEN" NAME="Index" VALUE="{$Index}" />
<A HREF="javascript:document.Name{$Index}.submit();"><xsl:value-of select="DATE" /></A>
</TD>
</FORM>
</TR>
</xsl:template>

</xsl:stylesheet>