>  Good morning,
> 
>   i got it.
> 
>   You have to look "inside" the value, because of the xml file <value><![CDATA[1]]></value>
> 
>   I solved it this way:
> 
>   <xsl:if test="contains(parameter/value,@id)">
>   ..
> 
>   It's not a real comparison, but it works for me.


contains only tests if the string value of @id is a substring of the
string value of the value element, not if they are equal. 

You presumably want

<xsl:if test="parameter/value= @id">

although noeither of tehse forms match the sample  input that you showed
before.

>    xml:
>    -------------------
>    <parameter>
> 	   <value><![CDATA[1]]></value>
>    </parameter>
> 
>    <itable id="1">
>    ..
>    </itable>


If your input is of that form you need

<xsl:if test="parameter/value= itable/@id">

David

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