stickynav.js

jQuery(document).ready(function( $ ) {
	$(window).on("load scroll resize", function() {
		var elem = $('#nav-wrapper');
		if (!elem.attr('data-top')) {
			if (elem.hasClass('navbar-fixed-top'))
				return;
			 var offset = elem.offset();
			elem.attr('data-top', offset.top - $('#wpadminbar').outerHeight());
		}
		if (elem.attr('data-top') - elem.outerHeight() <= $(this).scrollTop() - $(elem).outerHeight()){
			elem.addClass('navbar-fixed-top');
			elem.css('padding-top',$('#wpadminbar').outerHeight());
		}
		else {
			elem.removeClass('navbar-fixed-top');
			elem.css('padding-top','0');
		}
	
		if ($('#nav-wrapper').hasClass('navbar-fixed-top')){
			$('.site-content').css('padding-top' , $('#nav-wrapper').height());
		} 
		
		else {
			$('.site-content').css('padding-top' ,'0px');
		}
	});
 
	$(window).on("resize", function() {
		var elem = $('#nav-wrapper');
		var offset = $('#site-title').offset().top + $('#site-title').outerHeight();
		elem.attr('data-top', offset - $('#wpadminbar').outerHeight());
	});
});