isLoaded = false;

function nav_image(in_object,in_name,in_state) {
	if (!isLoaded) {
		return true;
	}
    if ((in_name == page) && (in_state == 'off')) {
        in_state = 'on';
    }
    in_object.src = eval(in_name + "_" + in_state + ".src");
}