imghome100on = new Image();
imghome100on.src = "images/home_on.gif";
imghome100off = new Image();
imghome100off.src = "images/100home_off.gif";

imgcatalogs100on = new Image();
imgcatalogs100on.src = "images/catalogs_on.gif";
imgcatalogs100off = new Image();
imgcatalogs100off.src = "images/100catalogs_off.gif";

imglinks100on = new Image();
imglinks100on.src = "images/links_on.gif";
imglinks100off = new Image();
imglinks100off.src = "images/100links_off.gif";

imgfree100on = new Image();
imgfree100on.src = "images/free_on.gif";
imgfree100off = new Image();
imgfree100off.src = "images/100free_off.gif";

imgabout100on = new Image();
imgabout100on.src = "images/about_on.gif";
imgabout100off = new Image();
imgabout100off.src = "images/100about_off.gif";

imgcontact100on = new Image();
imgcontact100on.src = "images/contact_on.gif";
imgcontact100off = new Image();
imgcontact100off.src = "images/100contact_off.gif";

// links image functions
function imgAct(imgName) {
    document[imgName].src = eval(imgName + "on.src");
}

function imgInact(imgName) {
    document[imgName].src = eval(imgName + "off.src");
}