$(document).ready(function() {
     $("a.anchorLink").anchorAnimate()
 });
 
jQuery.fn.anchorAnimate = function(settings) {
 
     settings = jQuery.extend({
         speed : 900
     }, 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;
         })
     })
 }