Windows won't respond!

[pkrodg]

so i started to install windows xp home on my intel imac it starts the setup and everything and when it asks me what to do next i have three options r for repair enter for continue f3 for quit i have tried all three idc anymore i just want my imac back and i tried rebooting it and it just starts up install setup again i tried ejecting the disc it wont let me. please what can i do????

[Markov]

hold down the option key down upon reboot, wait for the screen showing your mac os x partition, windows partition, and cd to come up, toggle over to mac os x and hit enter.