Hur löser man detta??
<code>
A runtime error has occured
Error: 'ns4' is undefined

<script LANGUAGE="JavaScript">
if(document.layers) {
var ns4 = true;
}
if(document.all) {
var ie4 = true;
}

function showObject(obj) {
if (ns4) obj.visibility = "show";
else if (ie4) obj.visibility = "visible";
}
function hideObject(obj) {
if (ns4) {
obj.visibility = "hide";
}
if (ie4) {
obj.visibility = "hidden";
}
}
</script>
</code>