function vista(url,w,h) {
	var vista = window.open(url,'vista', 'toolbar=no,scrollbars=no,resizable=yes,menubar=no,status=no,directories=no,location=no,width=' + w + ',height=' + h + "'")
	}
function talk(url,w,h) {
        var vista = window.open(url,'talk', 'toolbar=no,scrollbars=yes,resizable=yes,menubar=no,status=yes,directories=no,location=no,width=' + w + ',height=' + h + "'")
        }