// JavaScript Document

window.addEvent('domready', function(){
 var scroll = new Fx.Scroll('demo-wrapper', {
   wait: false,
   duration: 1500,
   transition: Fx.Transitions.Quad.easeInOut
 });

 $('nav_1').addEvent('click', function(event) {
  event = new Event(event).stop();
  scroll.toElement('content_1');
 });

 $('nav_2').addEvent('click', function(event) {
  event = new Event(event).stop();
  scroll.toElement('content_2');
 });

 $('nav_3').addEvent('click', function(event) {
  event = new Event(event).stop();
  scroll.toElement('content_3');
 });

 $('nav_4').addEvent('click', function(event) {
  event = new Event(event).stop();
  scroll.toElement('content_4');
 }); 
});