Index: /trunk/autoquest-core-events/src/main/java/de/ugoe/cs/autoquest/eventcore/guimodel/GUIElementGroup.java
===================================================================
--- /trunk/autoquest-core-events/src/main/java/de/ugoe/cs/autoquest/eventcore/guimodel/GUIElementGroup.java	(revision 1273)
+++ /trunk/autoquest-core-events/src/main/java/de/ugoe/cs/autoquest/eventcore/guimodel/GUIElementGroup.java	(revision 1274)
@@ -31,5 +31,9 @@
 public class GUIElementGroup extends AbstractDefaultGUIElement {
 
-    /**  */
+    /**
+     * <p>
+     * default serial version UID
+     * </p>
+     */
     private static final long serialVersionUID = 1L;
     
@@ -85,18 +89,23 @@
     /**
      * <p>
-     * TODO: comment
+     * returns the list of GUI elements belonging to this group.
      * </p>
-     *
-     * @param guiElement
-     */
-    public void addToGroup(IGUIElement guiElement) {
-        this.groupedGUIElements.add(guiElement);
-    }
-    
-    /**
+     * 
+     * @return the GUI elements belonging to this group
      * 
      */
     public List<IGUIElement> getGroupedElements() {
         return Collections.unmodifiableList(groupedGUIElements);
+    }
+    
+    /**
+     * <p>
+     * allows adding a new GUI element to the group
+     * </p>
+     *
+     * @param guiElement the new member of the group
+     */
+    void addToGroup(IGUIElement guiElement) {
+        this.groupedGUIElements.add(guiElement);
     }
     
@@ -111,8 +120,15 @@
     private static class GroupSpecification implements IGUIElementSpec {
         
-        /**  */
+        /**
+         * <p>
+         * default serial version UID
+         * </p>
+         */
         private static final long serialVersionUID = 1L;
+        
         /**
+         * <p>
          * the name of the GUI element group represented by this specification
+         * </p>
          */
         private String name;