var ImageArr1 = new Array("http://www.christiansenfirm.com/design/images/rotor-Liberty.jpg","http://www.christiansenfirm.com/design/images/rotor-flags.jpg","http://www.christiansenfirm.com/design/images/rotor-USflag.jpg");
var ImageHolder1 = document.getElementById('contextual');

function RotateImages(Start) {
	var a = ImageArr1;
	var b = ImageHolder1;
	if(Start>=a.length)
		Start=0;
	b.src = a[Start];
	setTimeout("RotateImages("+(Start+1)+")",5000);
}

setTimeout("RotateImages(0)",5000);