var popImg = null  // use this when referring to pop-up image


function apri_finestra(dest,winName,lar,alt,pagina)
{
	chiudi_finestra()
	//	window.open(dest,winName,"toolbar=no,menubar=no,scrollbars=no,resizable=no,width=" + lar + ",height=" + alt);
	popImg = window.open(dest+"?pagina="+pagina+"&",winName,"toolbar=no,menubar=no,scrollbars=no,resizable=no,width=" + lar + ",height=" + alt);

	//	window.open(dest,winName,"toolbar=no,menubar=no,scrollbars=no,resizable=no,width=300,height=150");
}

function apri_finestra_stampa(dest,winName,pagina)
{
	chiudi_finestra()
	//	window.open(dest,winName,"toolbar=no,menubar=no,scrollbars=no,resizable=no,width=700,height=500");
	popImg = window.open(dest+"?pagina="+pagina+"&",winName,"toolbar=no,menubar=no,scrollbars=no,resizable=no,width=700,height=600");

	//	window.open(dest,winName,"toolbar=no,menubar=no,scrollbars=no,resizable=no,width=300,height=150");
}


function chiudi_finestra()
{    // close pop-up window if it is open 
  if (navigator.appName != "Microsoft Internet Explorer" 
   	  || parseInt(navigator.appVersion) >=4) //do not close if early IE
    if(popImg != null) if(!popImg.closed) popImg.close() 
}