var popupWindow = '';
function popup (url, width, height, name) {
	if (!width) { width = 335; }
	if (!height) { height = 400; }
	if (!name) { name = 'popup'; }
	if (!popupWindow.closed && popupWindow.location) {
		/* popupWindow.resizeTo(width + 10, height + 30); */
		popupWindow.location.href = url;
	} else {
		popupWindow = window.open(url,name,'directories=no,location=no,menubar=no,status=no,titlebar=no,toolbar=no,scrollbars=yes,width=' + width + ',height=' + height + ',resizable=no');
		if (!popupWindow.opener) popupWindow.opener = self;
	}
	if (window.focus) { popupWindow.focus(); }
	return false;
}