function form_post(url, data} {
    let form = document.createElement('form');
    form.action = url;
    form.method = 'post';
    form.style.display = 'none';
    for (let item in data) {
        let opt = document.createElement('input');
        opt.type = 'text';
        opt.name = item;
        opt.value = data[item];
        form.appendChild(opt);
    }
    document.body.appendChild(form);
    form.submit();
}