Auto-Popup showing a Facebook "like button"

Hello, I need to visualize a nice auto-popup like this one here ( wait just 10secs... ) : [login to view URL] As you can see the auto popup starts after 10-15 secs. In this case there's a simple form inside. My features: - In my popup I want to show my FACEBOOK LIKE BUTTON (possibility to setup the page I want) - possibility to setup the delay - possibility to setup how often it appears to the same user (1 time for session OR every 3 days, ecc...) - possibility to setup the position - no-invasive popup: use jquery, css or something nice like that Possible problem: On my blog I'm already using Nivo Slider (based on jquery) In the past I tried to run lightbox and there was a conflict. Take care to your solution. These are all the details. Look at the attachment for the visual example... For more questions, ask me :-)