JavaScript Tutorial/Development/postError
opera.postError
<html>
<head>
<title>Debug Example</title>
<script type="text/javascript">
function test_function() {
opera.postError("Entering function.");
opera.postError ("Leaving function.");
}
test_function();
</script>
</head>
<body>
<P>This example works in Opera only.</p>
</body>
</html>