$(document).ready(function () {
        $(".main-menu ul").hover(
					function () { $(this).parent().children('a:first').addClass('dropdown'); },
					function () { $(this).parent().children('a:first').removeClass('dropdown'); }
				);
        
    });

        function showlightbox(url) {
            document.getElementById('customlightboxcontent').contentWindow.location.replace(url);
            document.getElementById('customlightbox').style.display = 'block';
        }

        function hidelightbox() {
            document.getElementById('customlightboxcontent').contentWindow.location.replace("");
            document.getElementById('customlightbox').style.display = 'none';
        }