$(document).ready(function() {
	
	$.easing.easeOutSine = function (x, t, b, c, d) {
		return c * Math.sin(t/d * (Math.PI/2)) + b;
	}
	
	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}, 1000, 'easeOutSine');

			 return false;

		   });

		}

	  }

	});

  });