function GB_enc(caption, url, /* optional */ height, width, callback_fn) {
    var options = {
        caption: caption,
        height: height || 500,
        width: width || 600,
        fullscreen: false,
	form_load: true,
	reload_on_close: true,
	callback_fn: callback_fn
    }
    var win = new GB_Window(options);
    return win.show(url);
}

function display_authbox() {
}

function display_mod() {
document.getElementById('mod').style.visibility="hidden"}

function display_static(param1) {
}

function display_mail(param2) {
}

function display_encart(localisation,encart,etat) {
}

function display_pub(pub,position,etat) {
}