Event.observe(window, 'load', function(event) {
	var toggle = 0;
	var spanPlus;
	var spanMinus;
	if (parseInt(navigator.userAgent.substring(navigator.userAgent.indexOf("MSIE")+5)) == 6) {
		$('cat_container').style.display = 'none';
	}
	else {
		$('cat_container').hide;
	}
	Event.observe('navRevealLink','click', function(event) {
		   if (toggle == 0) {
				   Effect.BlindDown('cat_container');
				   $('plus').setStyle({ background : 'url(/site/styles/css_img/lgnl-minus.gif) center right no-repeat' });
				   toggle = 1;
		   }
		   else {
				   Effect.BlindUp('cat_container');
				   $('plus').setStyle({ background : 'url(/site/styles/css_img/lgnl-plus.gif) center right no-repeat' });
				   toggle = 0;
		   }
		   Event.stop(event);
	});
});