function makeArrayImplicit () {
	var Count;
	this.length=makeArrayImplicit.arguments.length;
	for (Count = 1; Count < makeArrayImplicit.arguments.length+1; Count ++)
	this[Count]=makeArrayImplicit.arguments[Count-1];
	return (this);
}

function generate(x, y) {
  var range = y - x + 1;
  return Math.floor(Math.random() * range) + x;
}
oldImage=document.cookie.substring(0,1);
random_number=oldImage;
rotatingImages = new makeArrayImplicit ('/images/leftnav_pic1.jpg','/images/leftnav_pic2.jpg','/images/leftnav_pic3.jpg','/images/leftnav_pic4.jpg','/images/leftnav_pic5.jpg','/images/leftnav_pic6.jpg','/images/leftnav_pic7.jpg','/images/leftnav_pic8.jpg','/images/leftnav_pic9.jpg','/images/leftnav_pic10.jpg');

while (random_number == oldImage)
random_number=generate(1, rotatingImages.length);
document.cookie=random_number;

document.write('<img src="' +rotatingImages[random_number]+ '" width="152" height="376" border="0" alt="SCDOT image">')