Array call

1

Hi i currently have an if for keyboard input,
at the moment i have if R is pressed, perform the action
what i want is, if letter[number] is pressed, which will be a selected letter from the array,
perform the task,

override function keyDownHandler(e:KeyboardEvent):void {        //override any other key operations

        if(String.fromCharCode(e.keyCode) == 'R') {
            for (var i:uint=removeNum; i<clip; i++) {
                hitTarget = this.getChildByName("letter"+i);    //gets the correct letter clip
                if (hitTarget.hitTestPoint(leftSmall.x, leftSmall.y, true)) {    //if its hit the perfect circle
                    removeChild(hitTarget);        //remove the clip
                    removeNum++;                //add one to numebr removed
                    small=true;                    //small true
                    score+=10;                    //add to the score
                    energy.gotoAndPlay(energy.currentFrame-40);    //increase energy
                    perfectClip.gotoAndPlay(2);                    //play the perfect clip
                    return;                                        //exit
                }

is my current code,
i tried this…

override function keyDownHandler(e:KeyboardEvent):void {        //override any other key operations

        if(String.fromCharCode(e.keyCode) == letter[1]) {
            for (var i:uint=removeNum; i<clip; i++) {
                hitTarget = this.getChildByName("letter"+i);    //gets the correct letter clip
                if (hitTarget.hitTestPoint(leftSmall.x, leftSmall.y, true)) {    //if its hit the perfect circle
                    removeChild(hitTarget);        //remove the clip
                    removeNum++;                //add one to numebr removed
                    small=true;                    //small true
                    score+=10;                    //add to the score
                    energy.gotoAndPlay(energy.currentFrame-40);    //increase energy
                    perfectClip.gotoAndPlay(2);                    //play the perfect clip
                    return;                                        //exit
                }

but it didnt work
any help please
thanks