function whenLoaded(imageFile)
{
	document.write('<img ');
	if (imageFile.width >= imageFile.height)
	{
		document.write('width');
	}
	else
	{
		document.write('height');
	}
	document.write('=90% src="'+imageFile.src+'">')
}

function showImage(filename)
{
	var imageFile = new Image();
	imageFile.src=filename;
	imageFile.onLoad=whenLoaded(imageFile)


}