While Mouse Over

Question

Hi,
I've been trying to figure this out for days now and am finally asking for help.
I have a row of thumbnails with arrow on either side.  The thumbnails are animated and masked to created a scrolling effect.  What I want to do is have that animation play forward or backward when the mouse is over one arrow or the other.  I've been able to do the effect I want with Event.ENTER _FRAME and then calling that function with an if statment based on mouse position > or < a given value to go the next frame or the previous frame. When I do that it keeps going to the next frame or previouse frame as long as the if statment is true.  The problem is I want to do this with MouseEvent.MOUSE_OVER, but when I do that it just goes one frame and doesn't continue to do so until I take the mouse off and put it over the arrow again.  Is there a way to say that while the mouse is over the arrow to keep going to the next or previous frame. Below is the code I have.
rtthumb.addEventListener (MouseEvent.MOUSE_OVER, rtscroll, false,0,true);
lftthumb.addEventListener (MouseEvent.MOUSE_OVER, lftscroll, false,0,true);
function rtscroll(e:MouseEvent) :void{
        nextFrame();
function lftscroll(e:MouseEvent) :void{
         prevFrame();
s
I want this to continue to go to the next frame or previous frame until I take the mouse off the associated object.
Thanks

Answer 1

rtthumb.addEventListener (MouseEvent.MOUSE_OVER, rtscroll, false,0,true);
lftthumb.addEventListener (MouseEvent.MOUSE_OVER, lftscroll, false,0,true);
function rtscroll(e:MouseEvent) :void{
addEventListener(Event.ENTER_FRAME, efFunctionRight);
//nextFrame();
function lftscroll(e:MouseEvent) :void{
addEventListener(Event.ENTER_FRAME, efFunctionLeft);
//prevFrame();
function efFunctionRight(e:Event):void{
nextFrame();
function efFunctionLeft(e:Event):void{
prevFrame();
and repeat the process as kglad mentioned for the Mouse_Out events