Team:ZJU-China/js/scrollingnav

//jQuery to collapse the navbar on scroll $(window).scroll(function() {

   if ($(".navbar").offset().top > 50) {
       $(".navbar-fixed-top").addClass("top-nav-collapse");
   } else {
       $(".navbar-fixed-top").removeClass("top-nav-collapse");
   }

});

//jQuery for page scrolling feature - requires jQuery Easing plugin $(function() {

   $('a.page-scroll').bind('click', function(event) {
       var $anchor = $(this);
       $('html, body').stop().animate({
           scrollTop: $($anchor.attr('href')).offset().top
       }, 1500, 'easeInOutExpo');
       event.preventDefault();
   });

});

///////////////////////// // Scroll to top button /////////////////////////

// Check to see if the window is top if not then display button $(window).scroll(function(){

   if ($(this).scrollTop() < 500) {
   	$('.disappear-on-top').fadeOut();
       
   } else {
       $('.disappear-on-top').fadeIn();
   }

});