jqcc(document).ready(function ($) {

    $(window).scroll(function () {

		// Position testen
 	    var y = $(this).scrollTop();
	
		// fix machen
		if(y > 80) {

			// Höhe testen
			var sidenavHeight = $(".ulmatemainnavigation").height();
			var winHeight = $(window).height()-100;

				if ($('.ulmatemainnavigation').css('position') == 'fixed') {
					var sidenavHeight =  sidenavHeight-10; // fixed ist 10px größer als static, evtl. durch CSS margin oder padding!
				}

				if (sidenavHeight > winHeight) { 
					$(".ulmatemainnavigation").css({'position' : 'static'});
					// alert('a' + 's' + sidenavHeight + 'w' + winHeight);
				}
				else {
					$(".ulmatemainnavigation").css({'position' : 'fixed', 'top' : '0'});
				}

		} 

		// static machen
		if(y < 80) { 
			$(".ulmatemainnavigation").css({'position' : 'static'});	
		}

	});

});