window.addEvent('load', function(){
	['bicycle_components', 'power_sports', 'controls', 'injection_molded_parts'].each(function(item){
	    $(item).addEvent('mouseenter', function(){
			$(this).getChildren('.subslider').tween('height', [0, 150]);
		});
		
		$(item).addEvent('mouseleave', function(){
			$(this).getChildren('.subslider').tween('height', [150, 0]);
		});
	});
	
	$$('.subslider a').addEvent('mouseenter', function(){
		this.getParent("div").getChildren("div").addClass("hidden");
		this.getParent("div").getChildren("div." + this.className).removeClass("hidden");
	});
});