rem: * 
add: * @property callback 
context: YAHOO.widget.TVFadeIn = function(el, callback) {    /**     * The element to animate     * @type HTMLElement     */    this.el = el;    /**     * the callback to invoke when the animation is complete     *     * @type function     */    this.callback = callback;    /**     * @private     */};
meta: 4707	/local1/tlutelli/issta_data/temp/all_js/javascript/2006_temp/2006/4707/50c3492c4c3c825dbd3401e134a19ed46799c456/treeview.js/buggy/www/resources/yui/treeview/treeview.js