function previewQuestion(id, folder_id, value)
{
    new Ajax.Request('index.php', {
        onComplete: function (req)
        {
            $('preview').innerHTML = req.responseText;
            $('preview_background').style.display = 'block';
            $('preview_container').style.display = 'block';
            $('add_a').href = 'index.php?cmd=folder&mod=question&action=add&folder_id=' + folder_id + '&question_id=' + id + '&value=' + value;
        },
        method: 'post',
        parameters: 'cmd=folder&action=previewQuestion&id=' + id});
}

function previewClose()
{
    document.getElementById('preview_background').style.display = 'none'
    document.getElementById('preview_container').style.display = 'none'
}