MXML
MXML is an XML-based user interface markup language first introduced by Macromedia in March 2004. Application developers use MXML in combination with ActionScript to develop rich Internet applications, with products such as Apache Flex.
Adobe Systems, which acquired Macromedia in December 2005, gives no official meaning for the acronym MXML. Some developers suggest it should stand for "Magic eXtensible Markup Language". It is likely that the name comes from the MX suffix given to Macromedia Studio products released in 2002 and 2004, or simply "Macromedia eXtensible Markup Language".
MXML is used mainly to declaratively lay out the interface of applications and can also be used to implement business logic and internet application behaviors. It can contain chunks of ActionScript code, either when creating the body of an event handler function, or with data binding where the curly braces ('''A Hello World example:
layout="absolute" backgroundGradientColors="">