section = "none";

function img_on(imgName, imgLoc) {

    // turn an image on (switch to the new image)
    section = imgName;
    imgOn = eval(imgName + ".src");
    document [imgLoc].src=imgOn;
}

function img_off() {

    // restore all other sections
    document ['locStories'].src = "graphics/storlink.jpg";
    document ['locBiography'].src = "graphics/biolink.jpg";
    document ['locTools'].src = "graphics/toollink.jpg";
    document ['locToys'].src = "graphics/toylink.jpg";
    document ['locArt'].src = "graphics/artlink.jpg";
}

// preload images activated when mouse moves over menu

stories = new Image();
stories.src = "graphics/storlink_on.jpg";
biography = new Image();
biography.src = "graphics/biolink_on.jpg";
tools = new Image();
tools.src = "graphics/toollink_on.jpg"
toys = new Image();
toys.src = "graphics/toylink_on.jpg";
art = new Image();
art.src = "graphics/artlink_on.jpg";