function showLayer(layerID){

    if (document.layers){
        document.layers[layerID].visibility="show";

    } else if (document.all){
        document.all[layerID].style.visibility="visible";

    } else {
        document.getElementById(layerID).style.visibility="visible";
    }
}

function hideLayer(layerID){

    if(document.layers){
        document.layers[layerID].visibility="hide";

    } else if (document.all){
        document.all[layerID].style.visibility="hidden";

    } else {
        document.getElementById(layerID).style.visibility="hidden";
    }
}

function shadeMe(obj){
    obj.style.background="#3174C0";
}

function unshadeMe(obj){
    obj.style.background="#6EA7E5";
}