jQuery Smooth Scrolling Internal Links

scrollinglinks.js

jQuery(function($) {
        // from http://imakewebthings.com/jquery-waypoints/

        // Wicked credit to
	// http://www.zachstronaut.com/posts/2009/01/18/jquery-smooth-scroll-bugs.html
	var scrollElement = 'html, body';
	$('html, body').each(function () {
		var initScrollTop = $(this).attr('scrollTop');
		$(this).attr('scrollTop', initScrollTop + 1);
		if ($(this).attr('scrollTop') == initScrollTop + 1) {
			scrollElement = this.nodeName.toLowerCase();
			$(this).attr('scrollTop', initScrollTop);
			return false;
		}    
	});
	
	// Smooth scrolling for internal links
	$("a[href^='#']").click(function(event) {
		event.preventDefault();
		
		var $this = $(this),
		target = this.hash,
		$target = $(target);
		
		$(scrollElement).stop().animate({
			'scrollTop': $target.offset().top
		}, 500, 'swing', function() {
			window.location.hash = target;
		});
		
	});

});