diff -r 08e7b312664f -r d7cff2cba6e5 javaquery/api/src/main/java/org/apidesign/bck2brwsr/htmlpage/Knockout.java
--- a/javaquery/api/src/main/java/org/apidesign/bck2brwsr/htmlpage/Knockout.java	Mon Apr 15 22:03:59 2013 +0200
+++ b/javaquery/api/src/main/java/org/apidesign/bck2brwsr/htmlpage/Knockout.java	Thu Apr 18 20:09:45 2013 +0200
@@ -137,6 +137,14 @@
 
     @JavaScriptBody(args = { "id", "ev" }, body = "ko.utils.triggerEvent(window.document.getElementById(id), ev.substring(2));")
     public static void triggerEvent(String id, String ev) {
+        JSObject js = (JSObject) web().executeScript("(function () {"
+            + "  var x = {}; "
+            + "  x.trigger= function(id, ev) { "
+            + "    ko.utils.triggerEvent(window.document.getElementById(id), ev.substring(2));;\n"
+            + "  };"
+            + "  return x;"
+            + "})()");
+        js.call("trigger", id, ev);
     }
     
     @JavaScriptBody(args = { "bindings", "model", "prop", "getter", "setter", "primitive", "array" }, body =