function showImageFile(url) {
        window.open('/' + PATH + 'image_preview.php?url=' + url, '_blank', 'width=300,height=200,menubar=no,resizable=yes,left=0,top=0');
        return false;
}

// zobrazi obrazek do noveho okna
function showImage(id) {
    var win = window.open('/' + PATH + 'image_preview.php?id=' + id, '_blank', "width=800,height=600,menubar=no,resizable=yes,left=0,top=0");
    return false;
}

// odstrani obrazek z galerie
function removeImage(id) {
    var form = document.getElementById('actionForm');
    var input = document.getElementById('delete');

    input.value = id;
    form.submit();

    return false;
}