var navToTop = -1;
var navigationContainer;

jQuery(document).ready(function() {
	if(document.getElementById('navigationContainer') == null){
		return;
	} else {
		navigationContainer = document.getElementById('navigationContainer').classList;

		window.addEventListener("scroll", function (e) {
			if (window.innerWidth < 960) {
				return;
			}
			if (navToTop == -1) {
				navToTop = document.getElementById('navigationContainer').offsetTop;
				mainNavigationWidth = document.getElementsByClassName('mainNavigation')[0].offsetWidth;

			}

			if (window.pageYOffset > navToTop) {
				if (!navigationContainer.contains('scrollheader')) {
					navigationContainer.add('scrollheader');
				}
				if (mainNavigationWidth < 990) {
					navigationContainer.add('centerMenu');
				}
			} else {
				if (navigationContainer.contains('scrollheader')) {
					navigationContainer.remove('scrollheader');
				}
				if (navigationContainer.contains('centerMenu')) {
					navigationContainer.remove('centerMenu');
				}
			}
		}, {passive: true});
	}
	window.addEventListener('resize', function(){
		if(window.innerWidth < 960){
			if(navigationContainer.contains('scrollheader')){
				navigationContainer.remove('scrollheader');
			}
			if(navigationContainer.contains('centerMenu')){
				navigationContainer.remove('centerMenu');
			}
		}
	}, {passive: true});
});