$.fn.mega_nav = function (){

	var fade_time = 400
	var dropdown_pos = $(this).height()-5;
	var drop_detected = $(this).children('li').children('.v_nav').length
 
	if( drop_detected )
		{
			$(this).children('li').children('.v_nav').wrap('<div class="drop_down">');										  
			$(this).children('li').children('.drop_down').css('top',dropdown_pos);
			$(this).children('li').children('.drop_down').hide();
			$(this).children('li').mouseenter( function(){
				$(this).clearQueue("queueFade");
				$(this).children('a').first().addClass('dropped');
				$(this).children('.drop_down').fadeIn(fade_time);
			});
			$(this).children('li').mouseleave( function(){
				$(this).queue('queueFade', function(){ 
					$(this).children('a').first().removeClass('dropped');
					$(this).children('.drop_down').fadeOut(fade_time);
				}).dequeue('queueFade');
			});
		}

	else
		{
			// do nothing
		}
 
}


$('#main_nav').ready(function() {
	$('#main_nav').mega_nav();
});