function resizeImage()
{
	var window_height = document.body.clientHeight
	var window_width  = document.body.clientWidth
	var image_width   = document.images[0].width
	var image_height  = document.images[0].height
	var height_ratio  = image_height / window_height
	var width_ratio   = image_width / window_width
	if (height_ratio > width_ratio)
	{
		document.images[0].style.width  = "580px"
		document.images[0].style.height = "auto"
	}
	else
	{
		document.images[0].style.width  = "600px"
		document.images[0].style.height = "auto"
	}
}