How to slow speed of a sliding On/Off switch?

Hi there,

I’m animating this scene where a sliding On/Off switch responds to mousedrag. I have already constrained its movement to the Y-direction. But now I want to make this movieclip, called “MGAswitch”, to slide at a slower speed instead of the real-time mousedrag speed to simulate friction/resistance. How do I go about doing it?

Here’s my code:

stop();

var myBoundaries:Rectangle=new Rectangle(431,409.5,0.1,-15);

MGAswitch.addEventListener(MouseEvent.MOUSE_DOWN,dragSwitch);
function dragSwitch(event:MouseEvent):void {
    MGAswitch.startDrag(false,myBoundaries);
     = 1;
}
MGAswitch.addEventListener(MouseEvent.MOUSE_UP,dropSwitch);
function dropSwitch(event:MouseEvent):void {
    MGAswitch.stopDrag();
}
stage.addEventListener(MouseEvent.MOUSE_UP,dropSwitch2a);
function dropSwitch2a(event:MouseEvent):void {
    MGAswitch.stopDrag();
}

Thanks so much!