var adBtnOn= new Image (21,56);
adBtnOn.src= "images/advertiseover.gif";

var adBtnOff= new Image (21,56);
adBtnOff.src= "images/advertise.gif";

var tradeBtnOn= new Image (21,56);
tradeBtnOn.src= "images/tradersover.gif";

var tradeBtnOff= new Image (21,56);
tradeBtnOff.src= "images/traders.gif";

var linksBtnOn= new Image (21,39);
linksBtnOn.src= "images/linksover.gif";

var linksBtnOff= new Image (21,39);
linksBtnOff.src= "images/links.gif";

var termsBtnOn= new Image (21,39);
termsBtnOn.src= "images/termsover.gif";

var termsBtnOff= new Image (21,39);
termsBtnOff.src= "images/terms.gif";

var aboutBtnOn= new Image (21,39);
aboutBtnOn.src= "images/aboutover.gif";

var aboutBtnOff= new Image (21,39);
aboutBtnOff.src= "images/about.gif";