function ospite(str)
{
var son = window.open(str,'ceretto','scrollbars=yes,resizable=yes,width=550,height=560,status=no,location=no,toolbar=no, menubar=no');
son.focus();
}

function vino(str)
{
var son = window.open(str,'ceretto','scrollbars=yes,resizable=yes,width=650,height=680,status=no,location=no,toolbar=no, menubar=no');
son.focus();
}