Open Source License
This ajax file manager is distributed under the 
	GPL(http://www.gnu.org/licenses/gpl.html)
	and 
	MPL(http://www.mozilla.org/MPL/MPL-1.1.html) open source licenses
so you could use it or integrate it into your system at no cost
Term And Conditions
We (phpletter.com) may at any time revise the license by updating in my official site. By using our file manager, you agree to be bound byb any such revisions and should therefore periodically visit our site to determine the current terms/License to which you are bound.
All copyright declarations  in the source must remain unchangable. Please contact us(cailongqun at yahoo.com.cn) if you need to make changes to it, in order to avoid any Legal Issues.