(function($){
	
	/*----------------------------------------------
	 DOM ready
	----------------------------------------------*/
	$(window).load(function(){
		
		/* dropdown */
		$('#globalNavi>li')
		.each(function(){
			var $lower = $(this).find('div.lowerNavi'),
			    itemHeight = $lower.css({height:'auto'}).get(0).offsetHeight;
			$lower.height(0);
			$(this).hover(function(){
				$lower.css({height:0, opacity:0}).stop(true,false).animate({opacity:1, height:itemHeight}, 280);
			},function(){
				$lower.animate({opacity:0}, 300, function(){
					$lower.css({height:0});
				});
			});
		});		
	});

}(jQuery));