$(function() {
	$('#products_nav_link').hover(function() {
			var o = $(this).offset();
			$('#product_categories_nav_dropdown').css({'display':'block', 'left':o.left, 'top':(o.top + $(this).height())});
		}, function() {
			$('#product_categories_nav_dropdown').css('display','none');
		});
});