Add a "Show price" button instead showing prices to unregistered users

[broc93]

Hello!
Following Herbalife Italy rules, I'm not allowed to show product prices to unregistered users, so I have disabled this function.
Anyway, I'd like to put a button "Show Price" linking to a catalogue on the official Herbalife site, showing in a popup, visible only to unregistered users (if not possible, it's ok to show it to everybody).
Any idea on how to do it?
Thank you in advance,
Luca

PS: this is my site http://dietabenesserehl.it

[broc93]

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