A variable code prob

[nigele2]

Can anyone tell me why my variable is undefined. The element certainly has a value which appears in the text box.

<xsl:for-each select=&quot;@addrnumber&quot;>
<input type=&quot;text&quot; size=&quot;8&quot;> <xsl:attribute name=&quot;value&quot;> <xsl:value-of select=&quot;.&quot; /> </xsl:attribute> </input> <xsl:variable name=&quot;vaddrno&quot;> <xsl:copy-of select=&quot;.&quot; /> </xsl:variable> <xsl:value-of select=&quot;$vaddrno&quot; />
<a href=&quot;address01.asp?addrno={vaddrno}&quot;> Ad </a> </xsl:for-each>

Help