JavaScript DHTML/Mochkit/isNull
isNull function
<source lang="html4strict">
<html>
<head>
<script type="text/javascript" src="MochiKit-1.4.2/lib/MochiKit/Base.js"></script> <script type="text/javascript" src="MochiKit-1.4.2/lib/MochiKit/Iter.js"></script> <script type="text/javascript" src="MochiKit-1.4.2/lib/MochiKit/DOM.js"></script> <script type="text/javascript" src="MochiKit-1.4.2/lib/MochiKit/Style.js"></script> <script type="text/javascript" src="MochiKit-1.4.2/lib/MochiKit/Logging.js"></script> <script type="text/javascript" src="MochiKit-1.4.2/lib/MochiKit/Iter.js"></script>
</head> <body>
<script type="text/javascript">
alert( isNull(null) );
alert( isNull(undefined) );
alert( isNull({}) );
</script>
</body> </html>
</source>
