window.addEvent('domready', function(){
	//var myMenu = new UvumiDropdown("main_nav_ul"); 
	var myMenu = new UvumiDropdown("main_nav_ul",{
		duration:400, //default was 250ms
		transition:Fx.Transitions.Expo.easeOut, //default was Fx.Transitions.linear
		delay:0 //default was 500ms
	});
	/* var main_nav_els = $('main_nav').getElements('.main_nav');
	main_nav_els.each(function(el){
		if(el.getElement('.main_nav_children')){
			//el.setStyle('padding-bottom', '10px');
			var mnc = el.getElement('.main_nav_children');
			mnc.inject($('main_nav'), 'after');
			mnc.setStyle('position', 'absolute');
			mnc.setStyle('left', el.getLeft() + 'px');
			mnc.setStyle('top', el.getTop() + el.offsetHeight + 'px');
			mnc.setStyle("opacity", "0");
			el.og_offsetheight = el.offsetHeight;
			el.addEvent('mouseenter', function(e){
				el.setStyle('height', el.og_offsetheight + mnc.offsetHeight + 'px');
				mnc.setStyle("opacity", "0");
				mnc.fade('in');
			});
			// mnc.addEvent('mouseenter', function(e){
				// mnc.setStyle("opacity", "0");
				// mnc.fade('in');
			// });
			el.addEvent('mouseleave', function(e){
				//mnc.setStyle("display", "none");.
				//mnc.fade('out');
				el.setStyle('height', el.og_offsetheight + 'px');
			});
			// mnc.addEvent('mouseleave', function(e){
				//nc.setStyle("display", "none");.
				// mnc.fade('out');
			// });
		}
	}); */
});