animated image question

BlitzMax Forums/BlitzMax Programming/animated image question

The forum is locked. These are the original blitzbasic.com forums, kept so they can still be read. No new topics, replies or edits can be made here. To join in, head over to the Blitz3D+ forums.

[IMG]http://img169.imageshack.us/img169/2474/customerf001eatzp8.png[/IMG]
the above image is taken from yahoo game, Family Restaurant,.
there not complete full frame is drawn for animated frames.
if mouth move, only mouth is drawn in a frame, for hand only drawn hand in frame.

what i want to know is, what's the different between the full completely drawn frame vs only animated portion of frame with lots of transparency?

oh. BTW, how can i show my images in this forum? what's the TAG for it?