Popup on hover with clickable links

I want to make a popup on hover, on which we can click links. Sort of like when you hover an user in Facebook, you have options like add friend and all that. How to开发者_运维知识库 do that?

---

If you want to use jQuery, Google for jquery tooltip

One great tooltip with jQuery is the flowplayer tooltip. It allows you to put custom html in the tooltip box.