How to go straight to GRUB menu?

This was possible in ubuntu through changing the menu.lst file, though i’m not sure which part i’d need to change here.
How to i remove the timeout and on boot make the computer go straight to the OS Selection screen and hang there until i select which operating system i’m going to use?
Thanks in advance.

On ubuntu the menu is hidden, so if you edit the /boot/grub/menu.lst
and # the line that says hidden, then modify the line that says timeout
to the number in seconds you wish it to wait until the ‘default’ is
selected to boot.

Cheers Malcolm °¿° (Linux Counter #276890)
openSUSE 11.0 x86 Kernel
up 1 day 6:01, 1 user, load average: 0.05, 0.08, 0.12
GPU GeForce 6600 TE/6200 TE - Driver Version: 173.14.12