resizeProportionally

/**
 * Determines which size is smaller and resizes the other size to the same percentage
 *
 *@param	clip		The movieclip to resize
 *@param	w		The maximum width to resize to
 *@param	h		The maximum height to resize to
 *@param	overflow	A boolean to  determine if the image should overflow the visual area (no blank space)
 */
function resizeProportionally(clip:MovieClip, w:Number, h:Number, overflow:Boolean):Void {
	// Determine percentage
	var hPer:Number = w/clip._width;
	var vPer:Number = h/clip._height;
	if (overflow) {
		// Use biggest
		var percent:Number = Math.max(hPer, vPer);
	} else {
		// Use smallest
		var percent:Number = Math.min(hPer, vPer);
	}
	clip._width = (clip._width)*percent;
	clip._height = (clip._height)*percent;
}