disallow user to edit dropdown HTML element

smash/web/static/js/smash.js

@@ -23,8 +23,10 @@ $(document).ready(function () {
         } else {
             return true;
         }
-    })
-
+    });
+    
+    //disable all dropdown HTML select elements that should be readonly but aren't
+    $("select[readonly] option:not(:selected)").attr('disabled','disabled');
 });
 
 $.ajaxSetup({