pagina=null;
function openPopup (url){
if (pagina != null)
	pagina.close();
	pagina=window.open(url,"","resizable=yes,fullscreen=no,status=no,toolbar=no,scrollbars=no,menubar=no,width=600,height=400,top=20,left=20");
}
pagina = null;
function apriPrivacy(url,name,w,h,s){
if (pagina != null)
	pagina.close();
	pagina = window.open(url,name,"width="+w+",height="+h+",toolbar=no,location=no,directories=no,status=no,menubar=no,scrollbars="+s+",copyhistory=no,resizable=no,top="+(screen.availHeight-h)/2+",left="+(screen.availWidth-w)/2);
}