$(document).ready(function() {
		/**
		 * the menu
		 */
		var $menu = $('#btu_nav');

		/**
		 * for each list element,
		 * we show the submenu when hovering and
		 * expand the span element (title) to 510px
		 */
		$menu.children('li').each(function(){
			var $this = $(this);
			var $span = $this.children('span');
			$span.data('width',$span.width());

			$this.bind('mouseenter',function(){
				$menu.find('.btu_subnav').stop(true,true).hide();
					$this.find('.btu_subnav').slideDown(300);
				
			}).bind('mouseleave',function(){
				$this.find('.btu_subnav').stop(true,true).hide();
			});
		});
    });

$(document).ready(function() {
		/**
		 * the menu
		 */
		var $menu = $('#btu_nav');

		/**
		 * for each list element,
		 * we show the submenu when hovering and
		 * expand the span element (title) to 510px
		 */
		$menu.children('li').each(function(){
			var $this = $(this);
			var $span = $this.children('span');
			$span.data('width',$span.width());

			$this.bind('mouseenter',function(){
				$menu.find('.btu_subnav_contact').stop(true,true).hide();
					$this.find('.btu_subnav_contact').slideDown(300);
				
			}).bind('mouseleave',function(){
				$this.find('.btu_subnav_contact').stop(true,true).hide();
			});
		});
    });