check the <a href="http://15daysofjquery.com/examples/zebra/code/demoFinal.php">result</a>. Or check the <a href="http://15daysofjquery.com/examples/zebra/">tutorial</a>

        <pre data-sub="prettyprint:_">
        var MSDNMagNS = {};
        // nested namespace "Examples"
        MSDNMagNS.Examples = {};

        Javascript has not class, it has only function. So its inheritance is somewhat confusing. Before we talk about inheritance, let's make sure we understanding the basic. Here is the fact.
        <ol>
        <li>a function has property "prototype", the prototype object's points back to the function itself.
        <img src="http://msdn.microsoft.com/msdnmag/issues/07/05/JavaScript/fig03.gif" />

        <p>beforeunload happend before unload. beforeunload can give user a message, asking user if want to contine or not, if yes, unload event will trigger and unload can show user a message, but can not block to unload the page. Below is the sample.</p>

        <h4>Slide In</h4>
        <p>A Function for Slowly Revealing a Hidden Element by Increasing Its Height Over a
        Matter of One Second.</p>