var ic = 4;     // Number of alternative images is always one more than the array number below
	    var xoxo = new Array(ic);  // Array to hold filenames

	xoxo[0] = "img/q1.jpg";
	xoxo[1] = "img/q2.jpg";
	xoxo[2] = "img/q3.jpg";
	xoxo[3] = "img/q4.jpg";



	function pickRandom(range) {
	if (Math.random)
	return Math.round(Math.random() * (range-1));
	else {
	var now = new Date();
	return (now.getTime() / 1000) % range;
	}
	}
	// Write out an IMG tag, using a randomly-chosen image name.
	var choice = pickRandom(ic);