Applied concept of project.css as listed in bug system.

PR: MAVEN-370
Submitted by:	Jose Gonzale Gomez


git-svn-id: https://svn.apache.org/repos/asf/maven/maven-1/plugins/trunk@113262 13f79535-47bb-0310-9956-ffa450edef68

xdoc/src/plugin-resources/site.jsl

@@ -39,12 +39,19 @@
         <x:if select="not($nav/title)">
           <title>${pom.name} - ${docTitle}</title>
         </x:if>
-        <j:set var="tigrisCss" value='"${relativePath}/style/tigris.css"'/>
-        <j:set var="mavenCss" value='"${relativePath}/style/maven.css"'/>
+        
         <style type="text/css"><![CDATA[
-          @import url(${tigrisCss});
-          @import url(${mavenCss});
+          @import url("${relativePath}/style/tigris.css");
+          @import url("${relativePath}/style/maven.css");
         ]]></style>
+        
+        <util:file var="projectCssFile" name="${maven.docs.src}/style/project.css"/>
+        <j:if test="${projectCssFile.exists()}">
+          <style type="text/css"><![CDATA[
+            @import url("${relativePath}/style/project.css");
+          ]]></style>
+        </j:if>
+        
         <!-- FIXME: once someone works out how to stop this breaking
         <x:element name="script"><x:attribute name="type">text/javascript</x:attribute>
           if (document.layers) {