[xsl] sorting by date

[Aedemar Cooke <Aedemar.Cooke@xxxxxxxxxx>]

Hi,
I have an XML file with a list of <content> elements as shown below.  I need
to be able to sort them by publicationDate and only dipslay the first 20
Does anyone have any ideas?. 

<content id="66228-135831" displayText="banjo"  publicationDate="Wed Jan 01
00:00:00 GMT 1999" />
<content id="66228-135832" displayText="banjo"  publicationDate="Wed Aug 02
00:00:00 GMT 2001" />
<content id="66228-135833" displayText="banjo"  publicationDate="Wed Jul 03
00:00:00 GMT 2000" />
<content id="66228-135834" displayText="banjo"  publicationDate="Wed Jun 04
00:00:00 GMT 2000" />
<content id="66228-135835" displayText="banjo"  publicationDate="Wed May 05
00:00:00 GMT 1999" />
<content id="66228-135836" displayText="banjo"  publicationDate="Wed Apr 06
00:00:00 GMT 2000" />
<content id="66228-135840" displayText="banjo"  publicationDate="Wed Mar 07
00:00:00 GMT 2001" />
<content id="66228-135889" displayText="banjo"  publicationDate="Wed Feb 08
00:00:00 GMT 1998" />
<content id="66228-135890" displayText="banjo"  publicationDate="Wed Jan 09
00:00:00 GMT 2000" />
<content id="66228-135618" displayText="lotus" strapline="lotus"
publicationDate="Wed Mar 02 00:00:00 GMT 2000" />
<content id="66228-135713" displayText="nother Test" strapline="asd"
publicationDate="Wed Dec 13 00:00:00 GMT 2000" />


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