var artist = new Image();
var artiston = new Image();

var wildlife = new Image();
var wildlifeon = new Image();

var titanic = new Image();
var titanicon = new Image();

var aviation = new Image();
var aviationon = new Image();

var commissioned = new Image();
var commissionedon = new Image();

var masterwork = new Image();
var masterworkon = new Image();

var doulton = new Image();
var doultonon = new Image();

var harrods = new Image();
var harrodson = new Image();

var awards = new Image();
var awardson = new Image();

var press = new Image();
var presson = new Image();

var trade = new Image();
var tradeon = new Image();

var technical = new Image();
var technicalon = new Image();

var contact = new Image();
var contacton = new Image();

var order = new Image();
var orderon = new Image();

var home = new Image();
var homeon = new Image();

artist.src = "images/sidebutton_artist.gif";
artiston.src = "images/sidebutton_artist_on.gif";

wildlife.src = "images/sidebutton_wildlife.gif";
wildlifeon.src = "images/sidebutton_wildlife_on.gif";

titanic.src = "images/sidebutton_titanic.gif";
titanicon.src = "images/sidebutton_titanic_on.gif";

aviation.src = "images/sidebutton_aviation.gif";
aviationon.src = "images/sidebutton_aviation_on.gif";

commissioned.src = "images/sidebutton_commissioned.gif";
commissionedon.src = "images/sidebutton_commissioned_on.gif";

masterwork.src = "images/sidebutton_masterwork.gif";
masterworkon.src = "images/sidebutton_masterwork_on.gif";

doulton.src = "images/sidebutton_doulton.gif";
doultonon.src = "images/sidebutton_doulton_on.gif";

harrods.src = "images/sidebutton_harrods.gif";
harrodson.src = "images/sidebutton_harrods_on.gif";

awards.src = "images/sidebutton_awards.gif";
awardson.src = "images/sidebutton_awards_on.gif";

press.src = "images/sidebutton_press.gif";
presson.src = "images/sidebutton_press_on.gif";

trade.src = "images/sidebutton_trade.gif";
tradeon.src = "images/sidebutton_trade_on.gif";

technical.src = "images/sidebutton_technical.gif";
technicalon.src = "images/sidebutton_technical_on.gif";

contact.src = "images/sidebutton_contact.gif";
contacton.src = "images/sidebutton_contact_on.gif";

order.src = "images/sidebutton_order.gif";
orderon.src = "images/sidebutton_order_on.gif";

home.src = "images/sidebutton_home.gif";
homeon.src = "images/sidebutton_home_on.gif";

function ImageOn(ImageName) {
	document[ImageName].src = eval(ImageName + 'on.src');
}

function ImageOff(ImageName) {
	document[ImageName].src = eval(ImageName + '.src');
}