关于flex MDI的应用

官网信息：(API:http://flexlib.googlecode.com/svn/trunk/docs/index.html)
HowToContribute  
How you can contribute code to FlexLib
IntroductionLicenseBefore you submit codeFlexBuilderProject page to learn how to check out the project into Flex Builder. Read HowToBuild to learn how to compile the source files.
Everyone is encouraged to contribute Flex components they have developed. The FlexLib project is meant to be an inclusive community project. That said, we want to make sure that the components included in the FlexLib library are high quality and follow good coding practices.
All code submitted to FlexLib must be released under the MIT license. All code must have the standard version of the FlexLib MIT license block added to each source file (see any of the current source files in the SVN repository). Any original classes from Adobe or Macromedia should retain the original licensing block contained in those files.
Here's the license block:
/* 
Copyright (c) 2007 FlexLib Contributors.  See: 
    http://code.google.com/p/flexlib/wiki/ProjectContributors 
 
Permission is hereby granted, free of charge, to any person obtaining a copy of 
this software and associated documentation files (the "Software"), to deal in 
the Software without restriction, including without limitation the rights to 
use, copy, modify, merge, publish, distribute, sublicense, and/or sell copies 
of the Software, and to permit persons to whom the Software is furnished to do 
so, subject to the following conditions: 
 
The above copyright notice and this permission notice shall be included in all 
copies or substantial portions of the Software. 
 
THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR 
IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY, 
FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE&n