Index: trunk/webapps/js/common.js
===================================================================
--- trunk/webapps/js/common.js	(revision 327)
+++ trunk/webapps/js/common.js	(revision 348)
@@ -4,5 +4,9 @@
     {
         var xobj = new XMLHttpRequest();
-        xobj.overrideMimeType("application/json");
+        // Assume XML unless filename ends with .json
+        if (inFile.endsWith(".json"))
+        {
+            xobj.overrideMimeType("application/json");
+        }
         xobj.open('GET', inFile, true);
         xobj.onreadystatechange = function()