$(document).ready(function() {
/* affix the navbar after scroll below header */
$('#nav').affix({
offset: {
top: $('header').height()-$('#nav').height()
}
});
/* highlight the top nav as scrolling occurs */
$('body').scrollspy({ target: '#nav' })
/* smooth scrolling for scroll to top */
$('.scroll-top').click(function(){
$('body,html').animate({scrollTop:0},1000);
})
/* smooth scrolling for nav sections */
$('#nav .navbar-nav li>a').click(function(){
var link = $(this).attr('href');
var posi = $(link).offset().top;
$('body,html').animate({scrollTop:posi},700);
});
});