server_rank.php is useful but it would be even cooler if it could display two servers (for the same game) on the same graph. eg server_rank.php?GSID=123&GSID2=456 could show both server 123 and server 456 on the same graph (as long as they're for the same game).

Could it show both servers lines in different colours too, to make it easier to tell which line is which? Or could use colour parameters in the URL like ?GSID=123&GSID2=456&color=FF0000&color2=33FF99