function display_element(layer_ref) {

if (layer_ref=='1')
{
    if (document.all) { //IS IE 4 or 5 (or 6 beta)
        eval ("document.all.img-inputs.style.display = block");
        eval ("document.all.tut-inputs.style.display = none");
    }

    if (document.layers) { //IS NETSCAPE 4 or below
        document.layers[img-inputs].display = block;
        document.layers[tut-inputs].display = none;
    }

    if (document.getElementById &&!document.all) {
        hza = document.getElementById('tut-inputs');
        hza.style.visibility = "hidden";
        hza = document.getElementById('img-inputs');
        hza.style.visibility = "visible";
    }
}
else
{
    if (document.all) { //IS IE 4 or 5 (or 6 beta)
        eval ("document.all.img-inputs.style.display = none");
        eval ("document.all.tut-inputs.style.display = block");
    }

    if (document.layers) { //IS NETSCAPE 4 or below
        document.layers[img-inputs].display = none;
        document.layers[tut-inputs].display = block;
    }

    if (document.getElementById &&!document.all) {
        hza = document.getElementById('tut-inputs');
        hza.style.visibility = "visible";
        hza = document.getElementById('img-inputs');
        hza.style.visibility = "hidden";
    }
}
}