function post(path='#', value=null, valueId = "valueId", user=null, userId = "userId", method = "post")
{

    // The rest of this code assumes you are not using a library.
    // It can be made less wordy if you use one.
    var form = document.createElement("form");
    form.setAttribute("method", method);
    form.setAttribute("action", path);

    var idUser = document.createElement("input");
    idUser.setAttribute("type", "hidden");
    idUser.setAttribute("value", user);
    idUser.setAttribute("id", userId);
    form.appendChild(idUser);

    var hiddenField = document.createElement("input");
    hiddenField.setAttribute("type", "hidden");
    hiddenField.setAttribute("value", value);
    hiddenField.setAttribute("id", valueId);
    form.appendChild(hiddenField);

    document.body.appendChild(form);
    form.submit();
}