How do i call a Function from another Function ?

Question

When i press a button, i want a series of functions to execute one after another (they contain tweens, but its irrelevant), each of them waiting for the previous to be completed. I want to put the series of functions inside one function, so i can call just this function to execute all the others. The animations are working fine, but i dont know how call Functions from within another function. Also it would be necessary each function to wait until the previous has completed, to execute. Here is a clear example of what i need to do:
boton.onPress = animate ;
Function animate () {
     animation1 (onComplete: animation2);
     animation2 (onComplete: animation3);
     animation3 ;
Function animation1 () { Tween 1};
Function animation2 () { Tween 2};
Function animation3 () { Tween 3};
any suggestions ?

Answer 1

I'd do something like this:
boton.onPress = animation1 ;
Function animation1 () {
     var Tween1 = new Tween();
    Tween1.onComplete =  animation2;
Function animation2 () {
     var Tween2 = new Tween();
     Tween2.onComplete = animation3;
Function animation3 () {
     var Tween3 = new Tween();