[xsl] Grouping question

[Tristan Griffiths <tristan.griffiths@xxxxxxxxxxxx>]

Hello all, this is my first post so please be nice. After much googling 
I ended up here. It's a painful problem that I'm sure someone has solved 
before but google just doesn't seem to find the answer.

I have an XML structure like this:

<Tracklisting>
   <Track>
      <Disk>1</Disk>
      <Track>1</Track>
      <Title>THE PACKAGE</Title>
   </Track>
   <Track>
      <Disk>1</Disk>
      <Track>2</Track>
      <Title>WEAK AND POWERLESS</Title>
   </Track>
   <Track>
      <Disk>1</Disk>
      <Track>3</Track>
      <Title>THE NOOSE</Title>
   </Track>
   <Track>
       ...
   </Track>
</Tracklisting>

I would like to output a HTML table like this:

<table>
   <tr>
      <td colspan="2">Disk 1</td>
   </tr>
   <tr>
      <td>1. THE PACKAGE</td>
      <td>2. WEAK AND POWERLESS</td>
   </tr>
   <tr>
      <td>3. THE NOOSE</td>*
      *<td></td>
   </tr>
</table>

So basically it is a balanced, two column table, down and across. Is 
this possible with XSLT? I have experimented with keys but I'm afraid I 
have even less of an understanding of them now than I did before. I've 
just gotten confused.

Little help?


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