// Check scroll position and add/remove background to navbar
function checkScrollPosition() {
if($(window).scrollTop() > 50) {
  $(".fixed-header").addClass("scroll");
} else {        
  $(".fixed-header").removeClass("scroll");
}
}

$(document).ready(function () {   
// Single page nav
$('.fixed-header').singlePageNav({
	offset: 59,
	filter: ':not(.external)',
	updateHash: true        
});

checkScrollPosition();

// nav bar
$('.navbar-toggle').click(function(){
	$('.main-menu').toggleClass('show');
});

$('.main-menu a').click(function(){
	$('.main-menu').removeClass('show');
});
});

$(window).on("scroll", function() {
checkScrollPosition();    
});