$(document).ready(function(){     
   
	$('ul#navigation li').hover(function() {
	
		$(this).find('ul').slideDown('fast');
			
	},function(){
		
		$(this).find('ul').slideUp('fast');
	});  
	
	function equalHeight(group) {
		
		var tallest = 0;
		
		group.each(function() {
			
			var thisHeight = $(this).height();
			if(thisHeight > tallest) {
				tallest = thisHeight;
			}
			
		});
		
		group.height(tallest);
		
	}
	
	equalHeight($(".equal"));



});