function centersolo(id, maxDimension)
{
	var image = document.getElementById(id);
	var imgHeight = image.height;
	var imgWidth = image.width;
	var HWratio = imgHeight / imgWidth;
	var WHratio = imgWidth / imgHeight;
	if (imgHeight == imgWidth)
	{
		image.width = maxDimension;
		image.style.display = 'inline';
	}
	if (imgHeight < imgWidth)
	{
		image.width = maxDimension;
		var imageheight = maxDimension / WHratio;
		var offset = (maxDimension - imageheight) / 2;
		image.style.marginTop = offset + "px";
		image.style.display = 'inline';
	}
	if (imgHeight > imgWidth)
	{
		image.width = maxDimension / HWratio;
		var offset = (maxDimension - image.width) / 2;
		image.style.marginLeft = offset + "px";
		image.style.display = 'inline';
	}
}