var colors = ["violet", "red", "blue", "green", "gr-blue"];

function getRandomElement(a) {
	return a[Math.floor(Math.random() * a.length)];
}

function getRandomColor() {
	return getRandomElement(colors);
}

function colorMe() {
	var c = getRandomColor();

	if (document.getElementById) {
		var bodyTag = document.getElementById('bodytag');
		var logoTag = document.getElementById('logo4');

		bodyTag.className = c;
		logoTag.src = '/support/global/pf/C4L-logo-' + c + '.gif';
	} else {
		// just don't do anything
	}
}

addEvent(window, "load", colorMe);