$(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;

                });

              });

            }

          }

        });

      });