// 즐겨찾기
$(document).on("click", "#btnBookmark", function (e) {
    let bookmarkURL = e.target.value;
    let bookmarkTitle = document.title;
    let triggerDefault = false;

    if (window.sidebar && window.sidebar.addPanel) {
        // Firefox version < 23
        window.sidebar.addPanel(bookmarkTitle, bookmarkURL, '');

    } else if ((window.sidebar && (navigator.userAgent.toLowerCase().indexOf('firefox') > -1)) || (window.opera && window.print)) {
        // Firefox version >= 23 and Opera Hotlist
        let $this = $(this);
        $this.attr('href', bookmarkURL);
        $this.attr('title', bookmarkTitle);
        $this.attr('rel', 'sidebar');
        $this.off(e);
        triggerDefault = true;
    } else if (window.external && ('AddFavorite' in window.external)) {
        // IE Favorite
        window.external.AddFavorite(bookmarkURL, bookmarkTitle);
    } else {
        // WebKit - Safari/Chrome
        alert((navigator.userAgent.toLowerCase().indexOf('mac') != -1 ? 'Cmd' : 'Ctrl') + '+D 키를 눌러 즐겨찾기에 등록하실 수 있습니다.');
    }
    return triggerDefault;
});