I want to make a tool for a game server that will read the connect/disconnect logs and present them in a visually appealing way.
The effect I am looking for is similar to this mock-up (Excuse the ‘Programmer Art’)
Here is my image:

Where the coloured bars show the time the user was connected to the server.
DHX Timeline View is the closest I’ve come to a viable solution for an in-browser solution.
Simile, Mashi, Verite and a few others seem a bit too complex for what I want.
Are there any scripts that can do what I need?
Has anyone any experience with this kind of thing?
Would it be better to build one? If so, how? (I’m totally open to learning)
Timeline seems to be very close to what I want.
Here is an example that seems to fulfill my requirements.