RE: need to show spaces

Hi everyone,
        I am facing a problem with XSL.

I have in my XML
<a>
 <b val="11      22      33     44    55"></b>
 <b val="aa      bb      cc     dd    ee"></b>
 <b val="12      12      12     12    12"></b>
 <b val="44      55      66     77    88"></b>
</a>

in my XSL i have
  <table>
     <xsl:for-each select="a/b">
     <tr>
       <td><xsl:value-of select="@val"/></td>
     </tr>
     </xsl:for-each>
   </table>

I have put
<xsl:preserve-space elements="a"/> in the XSL but doesnt make a diff.

all help is appreciated
thanks in advance

regards,
Anurag