How can I use this Code Snippet in my Project File?

Hi,

I got this code from the following website:

How can I use this Code Snippet in my Project File to see the result?

http://snipplr.com/view/15783/as3-tint/

private function tint (clip:Object, newColor:Number):void
{
 var colorTransform:ColorTransform=clip.transform.colorTransform;
 colorTransform.color=newColor;
 clip.transform.colorTransform=colorTransform;
}