--- /dev/null
+/*
+* Licensed to the Apache Software Foundation (ASF) under one or more
+* contributor license agreements. See the NOTICE file distributed with
+* this work for additional information regarding copyright ownership.
+* The ASF licenses this file to You 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.
+*/
+/**
+ * This script, when included in a html file, can be used to make collapsible menus
+ *
+ * Typical usage:
+ * <script type="text/javascript" language="JavaScript" src="menu.js"></script>
+ */
+
+if (document.getElementById){
+ document.write('<style type="text/css">.menuitemgroup{display: none;}</style>')
+}
+
+
+function SwitchMenu(obj, thePath)
+{
+var open = 'url("'+thePath + 'images/chapter_open.gif")';
+var close = 'url("'+thePath + 'images/chapter.gif")';
+ if(document.getElementById) {
+ var el = document.getElementById(obj);
+ var title = document.getElementById(obj+'Title');
+
+ if(el.style.display != "block"){
+ title.style.backgroundImage = open;
+ el.style.display = "block";
+ }else{
+ title.style.backgroundImage = close;
+ el.style.display = "none";
+ }
+ }// end - if(document.getElementById)
+}//end - function SwitchMenu(obj)