How can I single out one of the for loops elements?

Question

Hi all, let's see if you can help with one .... I have 6 buttons [btn0, btn1 ... btn5] I want to redirect the user that clicks on one of the buttons [btn4]. I want to send them to nextFrame(); when they click on btn4.
Code:
for (var i = 0; i<=5; i++) {
    eval("btn"+i).onRelease = function() {
        selectBtn(this);
        if (!tryAgain) {
            if (correctAnswers >= btnCount) {
                trace("YesBaby!");
                //this._parent.gotoAndStop(nextFrame());
            } else {
                tryAgain = true;
                mcFeedback.text = "Try Again.";
        } else if (tryAgain=false) {
            //this.btnText.text = "Submit";
            _root.page.hideMessageBoxes();
            mcFeedback.text = "You've Got One More Chance!";
        } else {
            mcFeedback.text = "load animation";
            trace(this._name);
    function pictOpacity(pictAlpha:Number) {
        eval("mc"+i)._alpha = pictAlpha;
    eval("btn"+i).onRollOver = function() {
        pictOpacity(0);
    eval("btn"+i).onRollOut = function() {
        pictOpacity(100);
Thank you in advance.

Answer 1

if your buttons are movieclip buttons:
for (var i = 0; i<=5; i++) {
this["btn"+i].ivar=i;
    eval("btn"+i).onRelease = function() {
if(this.ivar==4){
nextFrame()
        selectBtn(this);
        if (!tryAgain) {
            if (correctAnswers >= btnCount) {
                trace("YesBaby!");
                //this._parent.gotoAndStop(nextFrame());
            } else {
                tryAgain = true;
                mcFeedback.text = "Try Again.";
        } else if (tryAgain=false) {
            //this.btnText.text = "Submit";
            _root.page.hideMessageBoxes();
            mcFeedback.text = "You've Got One More Chance!";
        } else {
            mcFeedback.text = "load animation";
            trace(this._name);
    function pictOpacity(pictAlpha:Number) {
        eval("mc"+i)._alpha = pictAlpha;
    eval("btn"+i).onRollOver = function() {
        pictOpacity(0);
    eval("btn"+i).onRollOut = function() {
        pictOpacity(100);
Thank you in advance.