Website visitor recording Service

I'm looking to create a website visitor recording feature for businesses similar to [login to view URL] and or luckyorange.com. This does not have to be real time viewing of visitors. I need their mouse movements and web page interactions recorded for later playback. Right now I'm looking to see if it would be affordable to outsource or just create this feature in-house. If you have the expertise in javascript, ajax, json, etc to make this happen, then place your bid. The feature must work similar to the previously mentioned sites. If you have other ideas, I'm open to them as well.