UFO is a DOM script that detects the Flash plug-in and embeds Flash objects (files with the .swf extension). It has its roots in the Web Standards community and is designed to support W3C standards compliant, accessible and search engine friendly web design. It also contains several features and best practice techniques that other scripts currently don't have. UFO is free, licensed under the CC-GNU LGPL and an Open Source Flash Project.
SWFObject is a small Javascript file used for embedding Adobe Flash content. The script can detect the Flash plug-in in all major web browsers (on Mac and PC) and is designed to make embedding Flash movies as easy as possible. It is also very search engine friendly, degrades gracefully, can be used in valid HTML and XHTML 1.0 documents, and is forward compatible, so it should work for years to come.
