tabbladen = ["invoeren", "statistieken","instellingen", "informatie"];


$(".content").swipe( {
            swipe:function(event, direction, distance, duration, fingerCount, fingerData) {
                activeTab = _findActiveTab().slice(0,-4);
                index = tabbladen.indexOf(activeTab);
                if(direction === 'right' && index > 0) {
                    $('ul.tabs').tabs('select_tab', tabbladen[index - 1]);
                } else if (direction === 'left' && index < 3) {
                    $('ul.tabs').tabs('select_tab', tabbladen[index + 1]);
                }
            },
            threshold:15,
            fingers:'all'
        });

var _findActiveTab = function() {
        $(".tabs").find('a').each(function () {
            if($(this).hasClass('active')) {
                activeTab = $(this).attr('id');
            };
        });
        return activeTab
    }