diff -r 621825e167d7 -r 12a252145892 ko/kosample/js/src/main/java/org/apidesign/bck2brwsr/kosample/js/Dialogs.java
--- a/ko/kosample/js/src/main/java/org/apidesign/bck2brwsr/kosample/js/Dialogs.java	Tue Apr 26 08:04:12 2016 +0200
+++ b/ko/kosample/js/src/main/java/org/apidesign/bck2brwsr/kosample/js/Dialogs.java	Wed Apr 27 06:14:49 2016 +0200
@@ -54,4 +54,12 @@
         "return 'Screen size is ' + x + ' times ' + y;\n"
     )
     public static native String screenSize();
+
+    @JavaScriptBody(args = { "id" }, body =
+          "var e = window.document.getElementById(id);\n "
+        + "var ev = window.document.createEvent('MouseEvents');\n "
+        + "ev.initMouseEvent('click', true, false, window, 0, 0, 0, 0, 0, false, false, false, false, 0, null);\n "
+        + "e.dispatchEvent(ev);\n "
+    )
+    public static native void triggerClick(String id);
 }