[xsl] How do I "merge" nodes based on a common key?

I have a xml file I would like to process into a html table.  I figure
that xslt is the way to go.  The file contains various nodes (results
from load testing) that all share a single attribute, title, that
identifies and links them in groups.  See snippet below.

So, I can't figure out some code to process this file and "merge" the
nodes based on the title attribute so I can print each "merged" node as
a single line in a table. sub-nodes AS well as attributes (though there
is no overlap in the latter!) should be merged.  Then I can use a
<xsl:for-each ..> to process the merged list.

I tried some stuff on my own and it is getting me nowhere (see below).

Any ideas?

Thanks - Yossie

<run>
<http_load title="X">

<url>http://delenn-g:8080/lps/sample-apps/calendar/calendar.lzo?
lzt=swf</url>
         <rr>delenn-g</rr>
         <fetches>94851</fetches>
         <max_parallel>50</max_parallel>
         <mbytes>111.443</mbytes>
         <elapsed>180.406</elapsed>
         <mean_kbytes_connection>1.20312</mean_kbytes_connection>
         <fetches_sec>525.763</fetches_sec>
         <mbytes_sec>0.617733</mbytes_sec>
         <msec_connect_mean>0.400405</msec_connect_mean>
         <msec_connect_max>66.577</msec_connect_max>
         <msec_connect_min>0.211</msec_connect_min>
         <msec_first_mean>94.5393</msec_first_mean>
         <msec_first_max>3768.62</msec_first_max>
         <msec_first_min>2.111</msec_first_min>
         <http_result>
                 <code>404</code>
                 <count>94851</count>
         </http_result>
</http_load>
<httpload       gzip="true"
         title="X"
         seconds="180"
         path="/sample-apps/calendar/calendar.lzo?lzt=swf"
         parallel="50"
         cache="false"
         lps="lps"
         datapath=""
         backend="" />
<fetch-curl title="X">

<url>http://delenn-g:8080/lps/sample-apps/calendar/calendar.lzo?
lzt=swf</url>
         <status>HTTP/1.1 404 Not Found</status>
         <size>1232</size>
         <http-headers>
                 <Date>Wed, 24 Mar 2004 19:04:12 GMT</Date>
                 <Server>Jetty/4.2.17 (Linux/2.4.18-26.8.0 i386
java/1.4.1_02)</Server>
                 <Content-Type>text/html</Content-Type>
                 <Content-Length>1232</Content-Length>
         </http-headers>
</fetch-curl>
  <!--
...
	... more httpload, http_load, fetch-curl nodes with different title
attributes, no more than one of each with a given title.
...
-->
</run>

---

<xsl:stylesheet version = '1.0'
xmlns:xsl='http://www.w3.org/1999/XSL/Transform'>

<xsl:output method="html" encoding="UTF-8" indent="yes" />
<xsl:template match="/run">
<xsl:key name="bleh" match="http_load | httpload | fetch_curl"
use="@title" />
<html>
<head>
<title>
Title
</title>
</head>
<body>
<table border="1" cellpadding="6">
<tr>
<th>Title</th>
<th>Cache</th>
<th>Gzip</th>
<th>Fetches</th>
<th>Parallel</th>
<th>Mbytes/Sec</th>
</tr>
<xsl:for-each select="key('bleh',.)">
<tr>
<td><xsl:value-of select="@title"/></td>
<td><xsl:value-of select="@cache"/></td>
<td><xsl:value-of select="@gzip"/></td>
<td><xsl:value-of select="fetches/text()"/></td>
<td><xsl:value-of select="max_parallel/text()"/></td>
<td><xsl:value-of select="mbytes_sec/text()"/></td>
</tr>
</xsl:for-each>
</table>
</body>
</html>
</xsl:template>
</xsl:stylesheet>

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