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diff --git a/wicket/components/src/main/java/org/wamblee/wicket/jquery/JQueryBehavior.java b/wicket/components/src/main/java/org/wamblee/wicket/jquery/JQueryBehavior.java
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+/*
+ * Copyright 2005-2010 the original author or authors.
+ * 
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * You may obtain a copy of the License at
+ * 
+ *      http://www.apache.org/licenses/LICENSE-2.0
+ * 
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ */
+package org.wamblee.wicket.jquery;
+
+import org.apache.wicket.Application;
+import org.apache.wicket.behavior.HeaderContributor;
+import org.apache.wicket.markup.html.JavascriptPackageResource;
+import org.apache.wicket.markup.html.resources.JavascriptResourceReference;
+
+/**
+ * JQuery bahavior which adds the jquery javascript.
+ * 
+ * @author Erik Brakkee
+ */
+public class JQueryBehavior extends HeaderContributor {
+
+    static final String JQUERY_DEPLOYMENT = "jquery-1.4.2.min.js";
+    static final String JQUERY_DEVELOPMENT = "jquery-1.4.2.js";
+
+    /**
+     * Constructs the behavior.
+     */
+    public JQueryBehavior() {
+        super(initializeInstance());
+    }
+    
+    private static HeaderContributor initializeInstance() {
+        return JavascriptPackageResource.getHeaderContribution(
+            JQueryBehavior.class, getJQueryJavascript());
+    }
+
+    private static String getJQueryJavascript() {
+        return Application.get().getConfigurationType().equals(
+            Application.DEVELOPMENT) ? JQUERY_DEVELOPMENT : JQUERY_DEPLOYMENT;
+    }
+}