Schedule appointment "grid" - Portal?!?

[aapl]

I am looking for a way to schedule appointments and view them graphically, for example something like this:

How is something like this set up? Are these grids Portals?

Any feedback or suggestions would be great, thank you.

[Søren Dyhr]

Mergefields is the name of the game here, but do poke into these:

http://www.seedcode.com/ccp51/cgi-bin/cp-app.cgi?usr=51F7369477&rnd=9679647&rrc=N&affl=&cip=83.72.199.130&act=&aff=&pg=cat&ref=CCGantt7

--sd