link to product homepages from logos on generated index.html pages

git-svn-id: https://svn.apache.org/repos/asf/lucene/dev/branches/solr3733@1388269 13f79535-47bb-0310-9956-ffa450edef68
diff --git a/lucene/site/xsl/index.xsl b/lucene/site/xsl/index.xsl
index f0d2d90..08352bc 100644
--- a/lucene/site/xsl/index.xsl
+++ b/lucene/site/xsl/index.xsl
@@ -35,7 +35,7 @@
         <title><xsl:text>Apache Lucene </xsl:text><xsl:value-of select="$version"/><xsl:text> Documentation</xsl:text></title>
       </head>
       <body>
-        <div><img src="lucene_green_300.gif"/></div>
+        <div><a href="http://lucene.apache.org/core/"><img src="lucene_green_300.gif" title="Apache Lucene Logo" alt="Lucene" border="0"/></a></div>
         <h1><xsl:text>Apache Lucene </xsl:text><xsl:value-of select="$version"/><xsl:text> Documentation</xsl:text></h1>
         <p>Lucene is a Java full-text search engine. Lucene is not a complete application, 
         but rather a code library and API that can easily be used to add search capabilities
diff --git a/solr/site/xsl/index.xsl b/solr/site/xsl/index.xsl
index b0969c2..f5babec 100644
--- a/solr/site/xsl/index.xsl
+++ b/solr/site/xsl/index.xsl
@@ -36,7 +36,7 @@
         <title><xsl:text>Apache Solr </xsl:text><xsl:value-of select="$version"/><xsl:text> Documentation</xsl:text></title>
       </head>
       <body>
-        <div><img src="solr.png"/></div>
+        <div><a href="http://lucene.apache.org/solr/"><img src="solr.png" title="Apache Solr Logo" alt="Solr" border="0"/></a></div>
         <h1><xsl:text>Apache Solr </xsl:text><xsl:value-of select="$version"/><xsl:text> Documentation</xsl:text></h1>
         <p>Solr is the popular, blazing fast open source enterprise search platform from the Apache Lucene project.
         Its major features include powerful full-text search, hit highlighting, faceted search, dynamic clustering,