<!--

ns4 = (document.layers)? true:false;
ie4 = (document.all)? true:false;
dom = (document.getElementById)? true:false;

function showDiv(id) {
    if (ns4) document.layers[id].visibility = "show"
    else if (ie4) document.all[id].style.visibility = "visible"
    else if (dom) document.getElementById(id).style.visibility = "visible"
}

function hideDiv(id) {
    if (ns4) document.layers[id].visibility = "hide"
    else if (ie4) document.all[id].style.visibility = "hidden"
    else if (dom) document.getElementById(id).style.visibility = "hidden"
}


// -->