How to Open SuperDrive without Apple Keyboard?

Hey gang;

Just received an old power mac G5 as a gift but without an apple keyboard. How can I open the superdrive without the eject button that is normally found the in the apple keyboard? I am currently using a Microsoft Wireless Keyboard 3000. It works well, but has no eject button. I've tried holding down the F12 for a while but no luck! Any Ideas? Please, I want to upgrade but cant install the CD!!!

Hold down the mouse button,keep it down at startup. May have to be a USB wired mouse and not a wireless one. Also..If its a tower you can remove the front bezel and push the tray release button on the drive with a paper clip.Little round hole under the cd tray.

Got It! All I had to do is Identify the Keyboard in System Preferences!!!, thanx guys, for everyone's input!!!

10-4 ...wasnt shure you could access the system. Its all about Drivers.