Variable 'undefined' with If/Else

Hi, what Have I done wrong! I want ‘time’ to return a number from the function it fires, So that it gets placed into the alphaTo Function …>
OK have a look :slight_smile:

blocks = 6;
            var time:Number = xSym();
            function xSym(){
                if (i<blocks/2){
                    time = i;
                    time = i - blocks;

So you see that I want to return a Number to ‘time’ … How do I Return the Number???
Help appreciated!