function rollover(id, on) {
	var image = document.getElementById(id);
	image.src = image.src.split("_on.gif").join("").split(".gif").join("") + ((on) ? "_on.gif" : ".gif");
}

function showStep(newStep) {
	step = newStep;
	for (x = 1; x <= steps; x++) {
		rollover("step" + x, (x == step));
		document.getElementById("stepTitle" + x).style.display = (x == step) ? "inline" : "none";	
		document.getElementById("stepBody" + x).style.display = (x == step) ? "inline" : "none";	
	}
}