Please Help. Restore macbook air

Hi everyone. I've tried to restore my macbook air using the remote disc method described many times in this forum, but I think I have a new issue never discussed. Here is what I'm doing:

1. Insert cd into my iMac
2. Reboot macbook air and hold down option key
3. Connect to wifi network and select remote MacOS cd as the bootup

Now, after I do all that, all I get is the loading screen. Eventually the machine will restart and boot up as it normally does to the operating system. What am I doing wrong here. All I want to do is restore my computer to it's original state. Please help me.