--- ./jcalendar/jcalendar.js	2010-11-25 05:27:32.000000000 -0700
+++ ./jcalendar/jcalendar.new.js	2011-04-01 14:52:38.000000000 -0700
@@ -45,7 +45,7 @@ if (Drupal.jsEnabled) {
       }
       
       // Get NodeID and ItemID
-      var ids = $(this).parent().parent().attr('class');
+      var ids = $(this).parent().parent().attr('id');
       var arrs = ids.split(" ");
       var arr = arrs[0].split(".");
       var nid = arr[1];