onError = null;

     if (document.images) { 
img1on = new Image();  
img1on.src = "../images/mail_on.gif";
img2on = new Image();
img2on.src = "../images/gtonews_on.gif";
img3on = new Image();
img3on.src = "../images/gtodir_on.gif";
img4on = new Image();
img4on.src= "../images/gtomeet_on.gif";
img5on = new Image();
img5on.src = "../images/bylaws_on.gif";
img6on = new Image();
img6on.src = "../images/prog_on.gif";
img7on = new Image();  
img7on.src = "../images/store_on.gif";
img8on = new Image();
img8on.src = "../images/lib_on.gif";
img9on = new Image();
img9on.src = "../images/links_on.gif";
img10on = new Image();
img10on.src= "../images/mission_on.gif";
img11on = new Image();
img11on.src = "../images/trade_on.gif";
img12on = new Image();
img12on.src = "../images/transnews_on.gif";

img1off = new Image();  
img1off.src = "../images/mail_off.gif";
img2off = new Image();
img2off.src = "../images/gtonews_off.gif";
img3off = new Image();
img3off.src = "../images/gtodir_off.gif";
img4off = new Image();
img4off.src= "../images/gtomeet_off.gif";
img5off = new Image();
img5off.src = "../images/bylaws_off.gif";
img6off = new Image();
img6off.src = "../images/prog_off.gif";
img7off = new Image();  
img7off.src = "../images/store_off.gif";
img8off = new Image();
img8off.src = "../images/lib_off.gif";
img9off = new Image();
img9off.src = "../images/links_off.gif";
img10off = new Image();
img10off.src= "../images/mission_off.gif";
img11off = new Image();
img11off.src = "../images/trade_off.gif";
img12off = new Image();
img12off.src = "../images/transnews_off.gif";
}

function imgOn(imgName) {
if (document.images) {
document[imgName].src = eval (imgName + "on.src");
}
}
function imgOff(imgName) {
if (document.images) {
document[imgName].src = eval (imgName + "off.src");
} }