function resize_images() { 
	
	for (var n=0; n<document.images.length; n++) {

		max_width=600;
		max_height=600;

		if (document.images[n].width > max_width) {
			document.images[n].height = document.images[n].height / document.images[n].width * max_width;
			document.images[n].width = max_width;
		}
		
		if (document.images[n].height > max_height) {
			document.images[n].width = document.images[n].width / document.images[n].height * max_height;
			document.images[n].height = max_height;
		}
	}
}