/** 
 * @fileOverview Extends the YUI tab view to add better support for preselecting tabs and polling for hash changes.
 * @author Tom McCourt / Oliver Bishop
 * @version 0.0.2
 * @changeLog Created..
 */

var UKISA = UKISA || {};
UKISA.widget = UKISA.widget || {};

UKISA.widget.TabView = function(el, config) {
	var tabs, hash, poll;

	hash = window.location.hash;

	tabs = new YAHOO.widget.TabView(el, {activeIndex: parseInt(hash.substring(4)) - 1 || 0}); 

	YAHOO.lang.later(500, tabs, function() {
		poll = window.location.hash;

		if (poll !== hash && poll.substring(0, 4) === "#tab") {
			this.selectTab(poll.substring(4) - 1);
			hash = poll;
		}
	}, null, true);

	return tabs;
};