$(function(){
  $('a[href*=#]').click(function() {
  if (location.pathname.replace(/^\//,'') == this.pathname.replace(/^\//,'') 
    && location.hostname == this.hostname) {
      var $target = $(this.hash);
      $target = $target.length && $target || $('[name=' + this.hash.slice(1) +']');
      if ($target.length) {
        var targetOffset = $target.offset().top;
        $('html,body').stop().animate({scrollTop: targetOffset}, 2000);
        return false;
      }
    }
  });
});