Help required with XSLT transformation

Hi there,
I am a xslt newbie and I am working on a stylesheet to transform the following XML. Can someone please help me in getting such a stylesheet that outputs all the departments names with HP Inkjet printers?
Thanks a lot.

SOURCE XML:

<?xml version="1.0" encoding="UTF-8"?>


Help Desk


HP
Laser




QA


HP
InkJet




Finance


HP
InkJet




HR


HP
Laser




IT


HP
InkJet






Want to get the following XML:

<?xml version="1.0" encoding="UTF-8"?>

<MESSAGE_BODY>










</MESSAGE_BODY>


The two key things that I

Hi Rafael,

the following stylesheet does the selection and the indexing.

Regards,
Juliane.

<?xml version="1.0" encoding="ISO-8859-1" ?>
<xsl:stylesheet xmlns:xsl=“http://www.w3.org/1999/XSL/Transform
version=“1.0”>

<xsl:output method=“xml”/>

<xsl:template match="/">

<MESSAGE_BODY>
<xsl:apply-templates select=“departments/dept[.//resource[printer and type = ‘InkJet’]]”/>
</MESSAGE_BODY>

</xsl:template>

<xsl:template match=“dept”>

<xsl:attribute name=“index”>
<xsl:number value=“position() - 1”/>
</xsl:attribute>

</xsl:template>

</xsl:stylesheet>

Thanks a lot Juliane!!!

Your help was very usefull, it worked great!!

Rafael