var shown = '';
var olfid = '1';

function win(url) {
	if(shown == '' || shown.closed) {
		shown = window.open(url,'win','scrollbars=yes,status=no, high,width=700,height=550');
	} else {
		shown.close();
		shown = window.open(url,'win','scrollbars=no,status=no, high,width=700,height=550');
	}
}