How to use values only once?

1

In my code I have two variables I only want to use them one time and after that never again. The vars are newDraggerPos and newHolderPos. How is that done?


function moveRight(event:MouseEvent):void {
    //trace(mcHolder.width);//6759
    //trace(scrollBar_mc.scrollMask.width);//610
    if (onDrag != true) {
        if (mcHolder.x != -(mcHolder.width -(scrollBar_mc.scrollMask.width+25))) {
            //advance content this amount
            mcHolder.x -= 559;
            //advance dragger this amount with each click
            scrollBar_mc.scrollDragger.x += ((scrollBar_mc.scrollMask.width)/12);
            //assign newPos
            //newPos = scrollBar_mc.scrollDragger.x;
            contentX.text = String(Math.round(mcHolder.x));
            draggerX.text = String(Math.round(scrollBar_mc.scrollDragger.x));
        }
    } else {
        //reset newPos and mcHolder.x only on the first click
        newDraggerPos = ((Math.round((6149+mcHolder.x)/559))*51)+24;
        newHolderPos = -((Math.round((6149+mcHolder.x)/559))*559)+25;
        mcHolder.x = newHolderPos;
        scrollBar_mc.scrollDragger.x = newDraggerPos;
        
        trace("mcHolder.x"+mcHolder.x);
        trace("scrollBar_mc.scrollDragger.x" +scrollBar_mc.scrollDragger.x);
        if (mcHolder.x != -(mcHolder.width -(scrollBar_mc.scrollMask.width+25))) {
            mcHolder.x -= 559;
            trace(newDraggerPos);
            trace(mcHolder.x);
            //scrollBar_mc.scrollDragger.x = newPos;
            scrollBar_mc.scrollDragger.x += ((scrollBar_mc.scrollMask.width)/12);
            contentX.text = String(Math.round(mcHolder.x));
            draggerX.text = String(Math.round(newDraggerPos));
        }
    }

}