A small jQuery-driven script to smooth-scroll to anchors

anchorScroll.js

jQuery.fn.smoothScroll = function(options) {
	var options = jQuery.extend({offset: 0, duration: 900, easing: "swing"}, options);
	$('html, body').stop().animate({'scrollTop': this.offset().top + options.offset}, options.duration, options.easing);
	}

function anchorLinkSmoothScroll() {
	// Smooth scroll to any clicked anchor link
	$("a[href^=#]").click(function (event) {
		event.preventDefault();
		var anchorLink = this.href.replace(this.baseURI, "");
		$(anchorLink).smoothScroll();
		$("html, body").promise().done(function() {window.history.replaceState(null, "Change Current Anchored Section", anchorLink)});
		return false;
		});
	}