jQuery.fn.anchorAnimate = function(settings) {
	settings = jQuery.extend({speed : 500 }, settings);
	return this.each(function(){
		var caller = this
		$(caller).click(function (event) {
			event.preventDefault()
			var locationHref = window.location.href
			var elementClick = $(caller).attr("href")
			var destination = $(elementClick).offset().top;
			$("html:not(:animated),body:not(:animated)").animate({ scrollTop: destination}, settings.speed, function() {
				window.location.hash = elementClick
				$('nav li.active').removeClass('active');
				$(caller).parent().addClass('active');
			});

			return false;
		})
	})
};