[yelp-xsl] mal2html-block: Fix if:if for maybe values

[Shaun McCance <shaunm src gnome org>]

commit 26056147bb22a8d7c705deb939adc256a70353e9
Author: Shaun McCance <shaunm gnome org>
Date:   Mon Apr 23 09:33:08 2012 -0400

    mal2html-block: Fix if:if for maybe values

 xslt/mallard/html/mal2html-block.xsl |   13 +++++++++++--
 1 files changed, 11 insertions(+), 2 deletions(-)
---
diff --git a/xslt/mallard/html/mal2html-block.xsl b/xslt/mallard/html/mal2html-block.xsl
index 4626899..95e3875 100644
--- a/xslt/mallard/html/mal2html-block.xsl
+++ b/xslt/mallard/html/mal2html-block.xsl
@@ -579,8 +579,17 @@ in accordance with the Mallard specification on fallback block content.
   <xsl:variable name="if">
     <xsl:call-template name="mal.if.test"/>
   </xsl:variable>
-  <xsl:if test="$if = 'true'">
-    <xsl:apply-templates mode="mal2html.block.mode"/>
+  <xsl:if test="$if != ''">
+    <xsl:choose>
+      <xsl:when test="$if != 'true'">
+        <div class="if-if {$if}">
+          <xsl:apply-templates mode="mal2html.block.mode"/>
+        </div>
+      </xsl:when>
+      <xsl:otherwise>
+        <xsl:apply-templates mode="mal2html.block.mode"/>
+      </xsl:otherwise>
+    </xsl:choose>
   </xsl:if>
 </xsl:template>