function finestra(url) {
var browser = navigator.userAgent.toLowerCase();
if (document.layers)
{
var aa=null;
aa=window.open(url,'aa','scrollbars=yes,resizable=yes,width=700,height=500,status=no,location=no,toolbar=no,top=0,left=0')
aa.focus();
}
else
{
newWin = window.open(url,'','scrollbars=yes,resizable=yes,width=700,height=500,status=no,location=no,toolbar=no,top=0,left=0');
}
}