var form = {};
form.elem  ={
    clone : function () {
        var elem = $('.tour_prototype');
        elem
                .clone(true)
                .removeClass('tour_prototype')
                .css ('display', 'block')
                .insertBefore("#tour_submitbutton");
    },
    setDatePicker : function () {
        $('.tour_pickdate')
            .datepicker('destroy')
            .datepicker(
                { dateFormat: 'dd.mm.yy' }
            )
        ;
    }
}

form.constructor = function () {
    $('.tour_duplicate')
        .hover(function() {
            $(this)
                .addClass("hover")
        }, function () {
            $(this).removeClass("hover");
        })
        .click(function () {
            form.elem.clone();
            form.elem.setDatePicker();
        });
    form.elem.clone();
    form.elem.setDatePicker();
}