// funzione di centratura del pop-up


IE = navigator.appName=="Microsoft Internet Explorer";
NS = navigator.appName=="Netscape";
bVer = parseInt(navigator.appVersion);

function centra(width,height){
  if (bVer >= 4) {
    _left = ( (screen.width-width) >>1 );
    _top  = ( (screen.height-height) >>1 );
  } else {
    _left = ( (800-width) >>1 );
    _top  = ( (600-height) >>1 );
  };
  if (IE) return (',top=' + _top + ',left=' + _left);
  else if (NS) return (',screenX=' + _left + ',screenY=' + _top);
}

// funzione di apertura del pop-up

function popup(location){
wi=500;
hi=400;
window.open(location,'dettagli','toolbar=no,location=no,menubar=no,scrollbars=yes,resizable=yes'+centra(wi,hi)+',width='+wi+',height='+hi);
        }


	// -->