String length question

Hello,

I want to now the sum of the lengths of attribute descriptions in the
xml below



<folder description="Ngin Mart">
     <folder description="Clientes"/>
     <folder description="Desempenho"/>
     <folder description="MyReports">
</folder>

I have tried this:


<xsl:template match="folder mode="left_menu">
    <xsl:variable name="sizeTotal"  select = 'string-
length(descendant::folder/@description)'/>
    <table border="0" cellspacing="0" cellpadding="0"
width="{count(folder)*$sizeTotal}">

      <tr>
        <xsl:apply-templates select="folder" mode="left_menu"/>
      </tr>
    </table>
  </xsl:template>



The variable "sizeTotal" will be the width of the table.

But dont work.



I dont know if you understand, my english is to bad!

Thanks


--
Marcio Ferreira mferreira@xxxxxxxxx
Telbit - Tecnologias de Informagco