/**
 * Scaling image down to maxWidth X maxHeight
 */
function scaleDownImage(image, maxWidth, maxHeight)
{
	if ((image.width/image.height) > (maxWidth/maxHeight)) {
		if (image.width > maxWidth) {
			image.resized = true;
			image.width  = maxWidth;
		}
	} else {
		if (image.height > maxHeight) {
			image.resized = true;
			image.height = maxHeight;
		}
	}
}