function year(year, storm) {
	this.key = year;
	this.name = "" + year;
	this.storm = storm;
	return(this);
}


function get_option_key(opt) {
	return(opt.key)
}

function get_option_name(opt) {
	return("" + opt.name)
}


function display_option(opt) {
	top.set_year(opt);
}



function previous_year() { previous_option() }

function next_year() { next_option() }

function set_storm(p) { get_option().storm = p; }