I think that might work except in the example it open up in a new popup window. I’m thinking about an effect that’s more like this…
If you go to this page click on the Live Preview button (lower left)
Next a new window will open with a page in an iFrame looks like. This is the effect I”m going for.
This example
If you look at the top there’s a bar to close the I frame or Buy The Product (basically takes you back to the previous page.