function footer_images()
{
	//Enter the images into the array, encased in single quotes and seperated by commas.
	var images = new Array('footer_polorids_2.png',
													'footer_polorids_3.png',
													'footer_polorids_4.png');
	var total_images = images.length;
	var random_number = Math.floor(Math.random()*total_images);
	return '<img src="/images/image_rotator/'+images[random_number]+'" alt="" width="260" height="173" />';
}