function show(object) { if (document.layers && document.layers[object] != null) document.layers[object].visibility = 'visible'; else if (document.all) document.all[object].style.visibility = 'visible'; }
function hide(object) { if (document.layers && document.layers[object] != null) document.layers[object].visibility = 'hidden'; else if (document.all) document.all[object].style.visibility = 'hidden'; }