var images = new Image(3);

images[0] = '/includes/css/css-images/mhphoto1.gif';
images[1] = '/includes/css/css-images/mhphoto2.gif';
images[2] = '/includes/css/css-images/mhphoto3.gif';

var ran_number = Math.round(Math.random()*3);

function rotatingMasthead() {       
    var img = images[ran_number];
    document.getElementById("motto").style.backgroundImage = 'url('+img+')';
    /*
    var img = document.createElement("img");
    img.src = images[ran_number];
    img.style.width = "210px";
    img.style.height = "153px";
    document.getElementById("motto").appendChild(img); */
}

window.addOnloadHandler(rotatingMasthead);