$(document).ready(function() {
  function filterPath(string) {
	  return string
	 .replace(/^\//,'')
	 .replace(/(index|default).[a-zA-Z]{3,4}$/,'')
	 .replace(/\/$/,'');
  }
  var locationPath = filterPath(location.pathname);
  $('a[href*=#]').each(function() {
	var thisPath = filterPath(this.pathname) || locationPath;
	if (  locationPath == thisPath
	&& (location.hostname == this.hostname || !this.hostname)
	&& this.hash.replace(/#/,'') ) {
	    var $target = $(this.hash), target = this.hash;
	    if (target) {
		  var targetOffset = $target.offset().top;
		  $(this).click(function(event) {
			event.preventDefault();
			$('html, body').animate({scrollTop: targetOffset}, 400, function() {
				location.hash = target;
			});
		  });
	    }
	}
  });
});