jQuery.fn.anchorAnimate = function(settings) {

   settings = jQuery.extend({
    speed : 1100
  }, 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
      });
        return false;
    })
  })
}