diff -r 52cb50cea1df -r b219134a2782 javaquery/demo-calculator-dynamic/src/main/resources/org/apidesign/bck2brwsr/demo/calc/Calculator.xhtml
--- a/javaquery/demo-calculator-dynamic/src/main/resources/org/apidesign/bck2brwsr/demo/calc/Calculator.xhtml	Sun Mar 31 12:26:07 2013 +0200
+++ b/javaquery/demo-calculator-dynamic/src/main/resources/org/apidesign/bck2brwsr/demo/calc/Calculator.xhtml	Tue Apr 02 15:49:42 2013 +0200
@@ -85,7 +85,8 @@
             <li>
                 <span data-bind="text: $data.value"></span> -
                 <a href="#" data-bind="click: $root.recoverMemory">Use</a>
-                <a href="#" data-bind="click: $root.removeMemory">Remove</a> -
+                <a href="#" data-bind="click: $root.removeMemory">Remove</a>
+                <a href="#" data-bind="click: $data.twice">Double</a> -
                 <span data-bind="text: $data.resultOf"></span>
             </li>
         </ul>