Little help on some terminology ;o

Little help on some terminology ;o

OK well jquery just clicked in my head after only a day...it's extremely easy especially with examples of every function in the documentation. I'm gonna get started on some graphics after this post so I can test out the animations and stuff.  ; )

Anyways, I have a question about some terminology that I'm not clear on in the documentation. Could someone clarify these terms:

1. element
2. DOM structure
3. attribute

I'd appreciate it.  ;o