diff -r 000000000000 -r 40c8f766c9b8 src/cm/media/js/lib/yui/yui_3.0.0b1/build/classnamemanager/classnamemanager-debug.js
--- /dev/null	Thu Jan 01 00:00:00 1970 +0000
+++ b/src/cm/media/js/lib/yui/yui_3.0.0b1/build/classnamemanager/classnamemanager-debug.js	Mon Nov 23 15:14:29 2009 +0100
@@ -0,0 +1,87 @@
+/*
+Copyright (c) 2009, Yahoo! Inc. All rights reserved.
+Code licensed under the BSD License:
+http://developer.yahoo.net/yui/license.txt
+version: 3.0.0b1
+build: 1163
+*/
+YUI.add('classnamemanager', function(Y) {
+
+/**
+* Contains a singleton (ClassNameManager) that enables easy creation and caching of 
+* prefixed class names.
+* @module classnamemanager
+*/
+
+/**
+ * A singleton class providing: 
+ * 
+ * <ul>
+ *    <li>Easy creation of prefixed class names</li>
+ *    <li>Caching of previously created class names for improved performance.</li>
+ * </ul>
+ * 
+ * @class ClassNameManager
+ * @static 
+ */
+
+// String constants
+var CLASS_NAME_PREFIX = 'classNamePrefix',
+	CLASS_NAME_DELIMITER = 'classNameDelimiter',
+    CONFIG = Y.config;
+
+// Global config
+
+/**
+ * Configuration property indicating the prefix for all CSS class names in this YUI instance.
+ *
+ * @property Y.config.classNamePrefix
+ * @type {String}
+ * @default "yui"
+ * @static
+ */
+CONFIG[CLASS_NAME_PREFIX] = CONFIG[CLASS_NAME_PREFIX] || 'yui';
+
+/**
+ * Configuration property indicating the delimiter used to compose all CSS class names in
+ * this YUI instance.
+ *
+ * @property Y.config.classNameDelimiter
+ * @type {String}
+ * @default "-"
+ * @static
+ */
+CONFIG[CLASS_NAME_DELIMITER] = CONFIG[CLASS_NAME_DELIMITER] || '-';
+
+Y.ClassNameManager = function () {
+
+	var sPrefix    = CONFIG[CLASS_NAME_PREFIX],
+		sDelimiter = CONFIG[CLASS_NAME_DELIMITER];
+
+	return {
+
+		/**
+		 * Returns a class name prefixed with the the value of the 
+		 * <code>Y.config.classNamePrefix</code> attribute + the provided strings.
+		 * Uses the <code>Y.config.classNameDelimiter</code> attribute to delimit the 
+		 * provided strings. E.g. Y.ClassNameManager.getClassName('foo','bar'); // yui-foo-bar
+		 * 
+		 * @method getClassName
+		 * @param {String}+ one or more classname bits to be joined and prefixed
+		 */
+		getClassName: Y.cached(function (c, x) {
+
+			var sClass = sPrefix + sDelimiter + 
+                   // ((x) ? Y.Array(arguments, 0, true).join(sDelimiter) : c);
+                   ((x) ? Array.prototype.join.call(arguments, sDelimiter) : c);
+
+			return sClass.replace(/\s/g, '');
+
+		})
+
+	};
+
+}();
+
+
+}, '3.0.0b1' );