(PS 7) Well, this is unusual...

Not precisely an icon-making question, but it did happen while I was making icons, though I still don't know what happened. Now whatever I select on the color bar changes the background color rather than the foreground color, unless I click on the foreground box and select the color I want from there. Most of the time I don't mind, but it's annoying when I just want to select black or white. Photoshop Help is no help, and I already checked the community memories.

So, anyone know how to change it back? :D