My correct display in my quiz is not adding.

Hi ive made a small quiz, and in it on a button, i added a code :

go1._visible = true;

go1.onRelease = function(){

correct_display = Number(correct_display) + 1;

}

and on a text input i added the code :

correct_display._visible = true;

correct_display = "0";

stop();

i want the correct_display to be the answer of the result if correct to be 1 and to be added up to the correct_display.

ive got buttons that when release are to have the code : as go1, but would be go2,go3,go4,go5

go1._visible = true;

go1.onRelease = function(){

correct_display = Number(correct_display) + 1;

}

if (Number(correct) == 5) {

    comment = "5 RIGHT!! You obviously cheated.";

} else if ((Number(correct) <= 4) and (Number(correct) >= 3)) {

    comment = "So, how does it feel to be average?!?";

} else if ((Number(correct) <= 2) and (Number(correct) >= 1)) {

    comment = "Did you even try to get them right?";

} else if (Number(correct) == 0) {

    comment = "One word. LOSER!!!";

}

and no comments are displaying either.