tests : index : don't have index show up in list

_posts/tests/2010-01-01-index.html

@@ -2,12 +2,12 @@
 title: Tests Index
 layout: default
 category: tests
-body_class: doc
+is_index_page: true
 ---
 
 <ul>
-  {% for post in site.categories[page.category] reversed %}
+  {% for post in site.categories.tests reversed %}
-    {% if post.layout != 'index-page' %}
+    {% if post.is_index_page != true %}
       <li><a href="{{ post.url }}">{{ post.title }}</a></li>
     {% endif %}
   {% endfor %}