Is there any way to trace the user activity in a web application?

I have a Image manipulation application for applying effects such as zoom,pan,rotate,etc.Is there any possible to keep a track of the order the user performs these manipulations?..I have all these manipulations done in JS. So no communication with the web server.This can be easily done in a Windows app by maintaining log files;But in web application is there any way to trace the user actions(keep a record)?.Any help would be appreciated :)