<!-- Inizio

function onepopup(str) { 
larg=550
alt=400 
toptop=(screen.height/2)-(alt/2)
leftleft=(screen.width/2)-(larg/2)
nomevar = window.open(str,'paginafissa','top='+toptop+',left='+leftleft+',scrollbars=no,width='+larg+',height='+alt+',status=no,location=no,toolbar=no'); 
nomevar.focus(); 

} 
// Fine -->