Leopard and Tiger On the Same Machine?

I bought an iMac early this year, about January 4th, and I recently upgraded to Mac OS X Leopard (10.5.1). Although I like Leopard very much, I was wondering if I could partition my Hard Drive and install Mac OS X Tiger on the other partition. If I can, will you please tell me a way to do it. I don’t exactly have the Tiger installation disk itself, I just have the two install CDs that came with my computer. (The two gray disks)