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Simple preloader Adobe Flash / Preloaders
A preloader is a usually simple animation that is played during the rest of a file is downloaded. An animation is made attractive to keep a viewer occupied, especially when the size of a swf is substantial. There are various kinds of preloaders; from simple forms showing a loaded percentage to sophisticated animations. However, because preloaders are a part of the main movie, they should be as small as possible in terms of file size since the preloader itself needs to be downloaded prior to the rest of the movie.