$(document).ready(function () {	
	
	simpleSlide();
		
	$('.main_nav li').hover(
		function () {
			//show its submenu
			$('.dd', this).slideDown(100);

		}, 
		function () {
			//hide its submenu
			$('.dd', this).slideUp(100);			
		}
	);
	
	$('.right-button div').removeClass('highlight').append('<span class="hover" />').each(function () {
		var $span = $('> span.hover', this).css('opacity', 0);
		$(this).hover(function () {
        	// on hover
            $span.stop().fadeTo(200, 1);
            }, function () {
            // off hover
            $span.stop().fadeTo(300, 0);
        });
	});
	
});