Looking to add skimming to a coppermine gallery

[opulence]

If you're familiar with adult top list gallery posts (TGPs) they often have 'skimming' which means that every 3rd or 4th click on a picture actually goes to a different pre-defined link (in a table array) instead of to the actual gallery.

Wondering if anyone is able to integrate 'skimming' into a coppermine gallery, so that each 3rd or 4th click to a gallery goes to a pre-defined link instead.

I already have this working on my site but the way it's currently setup it's blocked by popup blockers by default (I paid George on here to do this for me)

If anyone would be able to set it up so that its actual skimming (and will get past firefox/ie default popup blockers) I'd be willing to pay what's reasonable for it