Getting MacBook Pro to boot regularly after installing Windows7

[Huddle]

So I just installed Windows 7 on my 15'' MacBook Pro via. Bootcamp. This was done successfully and I am now on Windows 7. My problem is that I don't have the installation disk and my computer boots Windows 7 without giving me a choice. How do I make it boot regularly without having the installation disk?

Thanks

 

[simsaladimbamba]

Hold down the OPTION key after the startup sound.
In Mac OS X, go to System Preferences > Startup Disk and select Macintosh HD as startup disk, if you want to boot into Mac OS X primarily.

 

[Huddle]

Hold down the OPTION key after the startup sound.
In Mac OS X, go to System Preferences > Startup Disk and select Macintosh HD as startup disk, if you want to boot into Mac OS X primarily.

Thanks LOADS man, really, thanks!