gotoAndStop() function

this is my code.

stop();
var total: int = 0;

totaltext.text = total.toString();

opt01.addEventListener(MouseEvent.CLICK, fl_MouseClickHandler);

function fl_MouseClickHandler(event: MouseEvent): void {
total = total + 10;
totaltext.text = total.toString();

opt01.removeEventListener(MouseEvent.CLICK, fl_MouseClickHandler);
}

opt02.addEventListener(MouseEvent.CLICK, fl_MouseClickHandler_4);

function fl_MouseClickHandler_4(event: MouseEvent): void {
total = total - 2;
totaltext.text = total.toString();

opt02.removeEventListener(MouseEvent.CLICK, fl_MouseClickHandler_4);
}

opt03.addEventListener(MouseEvent.CLICK, fl_MouseClickHandler_5);

function fl_MouseClickHandler_5(event: MouseEvent): void {
total = total - 2;
totaltext.text = total.toString();
opt03.removeEventListener(MouseEvent.CLICK, fl_MouseClickHandler_5);

}

opt04.addEventListener(MouseEvent.CLICK, fl_MouseClickHandler_6);

function fl_MouseClickHandler_6(event: MouseEvent): void {
total = total - 2;
totaltext.text = total.toString();

opt04.removeEventListener(MouseEvent.CLICK, fl_MouseClickHandler_6);
}

//---------------------------------------------------------------------------//

opt0201.addEventListener(MouseEvent.CLICK, fl_MouseClickHandler_7);

function fl_MouseClickHandler_7(event: MouseEvent): void {
total = total - 2;
totaltext.text = total.toString();

opt0201.removeEventListener(MouseEvent.CLICK, fl_MouseClickHandler_7);

}

opt0202.addEventListener(MouseEvent.CLICK, fl_MouseClickHandler_8);

function fl_MouseClickHandler_8(event: MouseEvent): void {
total = total - 2;
totaltext.text = total.toString();

opt0202.removeEventListener(MouseEvent.CLICK, fl_MouseClickHandler_8);

}

opt0203.addEventListener(MouseEvent.CLICK, fl_MouseClickHandler_2);

function fl_MouseClickHandler_2(event: MouseEvent): void {
total = total + 10;
totaltext.text = total.toString();

opt0203.removeEventListener(MouseEvent.CLICK, fl_MouseClickHandler_2);

}

opt0204.addEventListener(MouseEvent.CLICK, fl_MouseClickHandler_9);

function fl_MouseClickHandler_9(event: MouseEvent): void {
total = total - 2;
totaltext.text = total.toString();

opt0204.removeEventListener(MouseEvent.CLICK, fl_MouseClickHandler_9);
}

next.addEventListener(MouseEvent.CLICK, fl_MouseClickHandler_3);

function fl_MouseClickHandler_3(event: MouseEvent): void {
if (total >= 13) {
gotoAndStop(2);
} else if (total < 13) {
gotoAndStop(3);
}
else {
trace("Complete All Questions")
}
}