When function complete do next

1

Being a bit new to AS3 I just cant figure this one out on my own even though I’ve look at some discutions at different forums but I dont quite get it

My problem is that getTourData(); kicks in too early and I dont want to use a timer 'cus I dont know how long removeAllMyChildren is going to take since it may be large sometimes. Give me a hint please, which way to go

AS3


    // years down
        this.arrowbtnMC.yearsBtnsMC.topArrDwnMC.addEventListener ('click', function() {;
    if (startYear==yearArr) { 
        yearArr--;
        removeAllMyChildren(); 
// when done removeAllMyChildren; do getTourData
        getTourData(yearArr);
    };
    });

function removeAllMyChildren(){
            while (textMoverMC.numChildren) {
            textMoverMC.removeChildAt(0);
        }
        while (compNameMoverMC.numChildren) {
            compNameMoverMC.removeChildAt(0);
        }
}