I have 2 swf's within the same html page.

(swf1) has a slider with button that changes the opacity of a movieclip when the viewer clicks, holds down the mouse button, drags the slider button to the right or left... (this file is working just fine).

(swf2) does not have a slider with button but the same opacity changes of movieclip should simultaneously change as in (swf1).

Has anyone used this sort of feature that can lend assistance?