bootstrap同一页面上多个模态框

非原创，很久以前一篇大佬的日记了，忘了出处

  $(document).on('show.bs.modal', '.modal', function(event) {
        $(this).appendTo($('body'));
    }).on('shown.bs.modal', '.modal.in', function(event) {
        setModalsAndBackdropsOrder();
    }).on('hidden.bs.modal', '.modal', function(event) {
        setModalsAndBackdropsOrder();
    });


    function setModalsAndBackdropsOrder() {  
        var modalZIndex = 1040;
        $('.modal.in').each(function(index) {
            var $modal = $(this);
            modalZIndex++;
            $modal.css('zIndex', modalZIndex);
            $modal.next('.modal-backdrop.in').addClass('hidden').css('zIndex', modalZIndex - 1);
        });
        $('.modal.in:visible:last').focus().next('.modal-backdrop.in').removeClass('hidden');
    }