function nirvana_positionWindow(theURL,winName,features) { //v2.0
  window.open(theURL,winName,features);
}

function tmt_fullscreen(url, scrollo) {
    var larg_schermo = screen.availWidth - 10;
    var altez_schermo = screen.availHeight - 30;
    window.open(url, "WindowName", "width=" + larg_schermo + ",height=" + altez_schermo + ",top=0,left=0,scrollbars=" + scrollo + "");
}