Thanks for the answer! It's now partly clear.
 

Thank you for the answer! The reasons seems to be clear now.

However, I don't know how to trigger then this event.
I wrote some kind of function like this but I don'tknow how to trigger:

function HideSubmenu1 () {

if (!(Submenu1.hitTest(_root._xmouse, _root._ymouse, false))){

_root.onEnterFrame = function() {

Submenu1._y += (targetOben-Submenu1._y)/speed;

}//onEnterFrame

}//if


}

Answer in Russian is ok. Thanks in advance.

SHJ

How do you like this:
functionName(params);
or in your case:
HideSubmenu1();