explicitly register form makes intention clear

git-svn-id: https://svn.apache.org/repos/asf/click/trunk/click@1041288 13f79535-47bb-0310-9956-ffa450edef68
diff --git a/examples/src/org/apache/click/examples/page/ajax/form/AdvancedFormAjaxPage.java b/examples/src/org/apache/click/examples/page/ajax/form/AdvancedFormAjaxPage.java
index dd4cea0..a4dd900 100644
--- a/examples/src/org/apache/click/examples/page/ajax/form/AdvancedFormAjaxPage.java
+++ b/examples/src/org/apache/click/examples/page/ajax/form/AdvancedFormAjaxPage.java
@@ -22,6 +22,7 @@
 import java.util.List;
 import org.apache.click.Control;
 import org.apache.click.ActionResult;
+import org.apache.click.ControlRegistry;
 import org.apache.click.ajax.DefaultAjaxBehavior;
 import org.apache.click.control.Form;
 import org.apache.click.control.Submit;
@@ -77,13 +78,15 @@
             }
         });
 
-        // NOTE: we add a Behavior to Form so that Click registers the Form as an Ajax target
-        // ALSO NOTE: we don't implement the onAction method as the save and cancel Submits
-        // handles the Behavior action event
-        form.addBehavior(new DefaultAjaxBehavior());
+        // NOTE: we explicitly register the Form as an Ajax target so that the
+        // Fom#onProcess method can be invoked. The save button's Behavior will
+        // still handle the request though
+        ControlRegistry.registerAjaxTarget(form);
 
-        // Instead of adding a behavior, the same can be achived by explicitly registering the Form as an Ajax Target:
-        // ControlRegistry.registerAjaxTarget(form);
+        // Instead of explicitly registering the Form, the same can be achived by
+        // adding an empty Behavior to the Form so that Click register the Form
+        // as an Ajax target:
+        // form.addBehavior(new DefaultAjaxBehavior());
     }
 
     /**