ActionScript 3.0 :: Use Wildcards - Changing Color Of Buttons With Mouse Events

I have 30 buttons called thumb01 to thumb30. I have created this functions so when hover over and hover out of the one of the buttons it changes colour. I would like to use this for all my 30 buttons, but I dont want ot write the same code 30 times. Is there a way to for example to use wildcards so I can write thumbxx and address all the buttons.

var col:Color = new Color();
col.setTint(0xFFFFFF, 0.5);
set1_mc.thumb01_btn.addEventListener(MouseEvent.MOUSE_OVER,hoverOver);
function hooverOver(event:MouseEvent):void {
set1_mc.thumb01_btn.transform.colorTransform = col;
} set1_mc.thumb01_btn.addEventListener(MouseEvent.MOUSE_OUT,hoverOut);
function hooverOut(event:MouseEvent):void {
set1_mc.thumb01_btn.transform.colorTransform= new ColorTransform()
}