changed method of check if an index is a pre-2.4 index

lib/python/Products/ZCatalog/dtml/manageIndex.dtml

@@ -171,31 +171,34 @@ function toggleSelect() {
    </td>
 
   <dtml-with sequence-key>
-  <td>
-  <div class="list-item">
-    <dtml-var meta_type>
-    <dtml-try>
-     <dtml-let xx=numObjects></dtml-let>
-    <dtml-except> 
-     (pre-2.4 index)
-    </dtml-try>
-  </div>
-  </td>
-  <td>
-  <div class="list-item">
-  <dtml-try>
-  <dtml-var numObjects>
-  <dtml-except>n/a
-  </dtml-try>
-  </div>
-  </td>
 
-  <td>
-  <div class="list-item">
-  <dtml-var bobobase_modification_time fmt="%Y-%m-%d %H:%M">
-  </div>
-  </td>
+    <td>
+    <div class="list-item">
+      <dtml-if "_.string.find(_.str(_.getattr(this(),'__implements__','old')),'PluggableIndexInterface')>-1">
+        <dtml-var meta_type>
+      <dtml-else>
+         (pre-2.4 index)
+      </dtml-if>
+    </div>
+    </td>
+
+    <td>
+      <div class="list-item">
+      <dtml-try>
+      <dtml-var numObjects>
+      <dtml-except>n/a
+      </dtml-try>
+    </div>
+    </td>
+
+    <td>
+      <div class="list-item">
+        <dtml-var bobobase_modification_time fmt="%Y-%m-%d %H:%M">
+      </div>
+    </td>
+
   </dtml-with>
+
 </tr>
 </dtml-in>
 </table>