Removed the active applications thing from panel

[Garry | K | E]

hey,

When I just tried to remove a seperator from the main top panel on my desktop, I accidentally clicked the thing that shows the active applications

like the image below...
http://h.imagehost.org/0082/Screenshot.png

...and now I can't find the right thing to on the Add to Panel menu that puts it back as it should be.

I also tried logging out of the user account and back in but it didn't put it back.
Does anyone know which one it is?

[ricardo.gloe]

Just right-click on the panel, then click add to panel and search for "notification area". That's the applet you want.