JS object undefined problem
<pre><code>&lt;script type="text/javascript"&gt;
var X = {
   a: [{name:john, phone:777},{name:john, phone:777},{name:john, phone:777}],
   b: [{name:john, phone:777},{name:john, phone:777},{name:john, phone:777}],
   c: [{name:john, phone:777},{name:john, phone:777},{name:john, phone:777}],
   d: [{name:john, phone:777},{name:john, phone:777},{name:john, phone:777}]


}

var str = JSON.stringify(X);
alert(str);


&lt;/script&gt;
</code></pre>

<p>What's wrong with this object?? It alerts "Uncaught ReferenceError: john is not defined"
How come??</p>
