var radio_on = new Image();
var radio_off = new Image();
var facility_on = new Image();
var facility_off = new Image();
var rental_on = new Image();
var rental_off = new Image();
var shorts_on = new Image();
var shorts_off = new Image();
var membership_on = new Image();
var membership_off = new Image();
var media_on = new Image();
var media_off = new Image();
var boxoffice_on = new Image();
var boxoffice_off = new Image();
var music_on = new Image();
var music_off = new Image();
var film_on = new Image();
var film_off = new Image();
var dance_on = new Image();
var dance_off = new Image();
var readings_on = new Image();
var readings_off = new Image();
var family_on = new Image();
var family_off = new Image();
var theatre_on = new Image();
var theatre_off = new Image();
var education_on = new Image();
var education_off = new Image();
var tickets_on = new Image();
var tickets_off = new Image();
var calendar_on = new Image();
var calendar_off = new Image();
var cassettes_on = new Image();
var cassettes_off = new Image();

radio_on.src = "../images/top_radio_on.gif";
radio_off.src = "../images/top_radio_off.gif";
facility_on.src = "../images/top_nav_facility_on.gif";
facility_off.src = "../images/top_nav_facility_off.gif";
rental_on.src = "../images/top_nav_rental_on.gif";
rental_off.src = "../images/top_nav_rental_off.gif";
shorts_on.src = "../images/top_nav_shorts_on.gif";
shorts_off.src = "../images/top_nav_shorts_off.gif";
membership_on.src = "../images/top_nav_membership_on.gif";
membership_off.src = "../images/top_nav_membership_off.gif";
media_on.src = "../images/top_nav_media_on.gif";
media_off.src = "../images/top_nav_media_off.gif";
boxoffice_on.src = "../images/top_nav_boxoffice_on.gif";
boxoffice_off.src = "../images/top_nav_boxoffice_off.gif";
music_on.src = "../images/nav_music_on.gif";
music_off.src = "../images/nav_music_off.gif";
film_on.src = "../images/nav_film_on.gif";
film_off.src = "../images/nav_film_off.gif";
dance_on.src = "../images/nav_dance_on.gif";
dance_off.src = "../images/nav_dance_off.gif";
readings_on.src = "../images/nav_readings_on.gif";
readings_off.src = "../images/nav_readings_off.gif";
family_on.src = "../images/nav_family_on.gif";
family_off.src = "../images/nav_family_off.gif";
theatre_on.src = "../images/nav_theatre_on.gif";
theatre_off.src = "../images/nav_theatre_off.gif";
education_on.src = "../images/nav_education_on.gif";
education_off.src = "../images/nav_education_off.gif";
tickets_on.src = "../images/nav_tickets_on.gif";
tickets_off.src = "../images/nav_tickets_off.gif";
calendar_on.src = "../images/nav_calendar_on.gif";
calendar_off.src = "../images/nav_calendar_off.gif";
cassettes_on.src = "../images/nav_cassettes_on.gif";
cassettes_off.src = "../images/nav_cassettes_off.gif";

function swapImg(which, newImg){
	document.images[which].src = newImg.src;
}

function toggleRadio(which){
	if (which == "e"){
		swapImg("radioEvent", radio_on);
		swapImg("radioKeyword", radio_off);
		document.forms["searchForm"].search.value = "e";
	} else {
		swapImg("radioEvent", radio_off);
		swapImg("radioKeyword", radio_on);
		document.forms["searchForm"].search.value = "k";
	}
}