localscroll.js

$(document).ready(function(){
	// Local Scroll
	function filterPath(string) {
		return string.replace(/^\//,'').replace(/(index|default).[a-zA-Z]{3,4}$/,'').replace(/\/$/,'');
	}
	$('a[href*=#]').each(function() {
		if (
			filterPath(location.pathname) == filterPath(this.pathname)
			&& location.hostname == this.hostname
			&& this.hash.replace(/#/,'')
		) {
			var $targetId = $(this.hash), $targetAnchor = $('[name=' + this.hash.slice(1) +']');
			var $target = $targetId.length ? $targetId : $targetAnchor.length ? $targetAnchor : false;
			if ($target) {
				var targetOffset = $target.offset().top;
				$(this).click(function() {
					$('html, body').animate({scrollTop: targetOffset}, 400);
					return false;
				});
			}
		}
	});
});