jQuery smooth scroll to anchor

jquery.smoothscroll.js

// use it like this: <a class="scroll" href="#destination1">Destination 1</a> 
// <section id="destination1">Lore ipsum</section>

$(".scroll").click(function(event){
   event.preventDefault();
   //calculate destination place
   var dest=0;
   if($(this.hash).offset().top > $(document).height()-$(window).height()){
        dest=$(document).height()-$(window).height();
   }else{
        dest=$(this.hash).offset().top;
   }
   //go to destination
   $('html,body').animate({scrollTop:dest}, 1000,'swing');
});