var popUpWin
function closeUp( loc, w, h ) {
	if (popUpWin != null) popUpWin.close();
	if (document.all) { //IE
		w = w + 20; h = h + 25;
	}

	winprops = ',toolbar=no,location=no,directories=no,status=no,menubar=no';
	winprops += ',resizable=yes,scrollbars=no,top=' + ((screen.availHeight - h) / 2) + ',left=' + ((screen.availWidth - w) / 2);
	popUpWin = window.open(loc, '_BLANK', 'width=' + w + ',height=' + h + winprops);
}