javascript当中removeChild的用法

例 1.5（removeChild()IEFF.html）
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<!DOCTYPE HTML PUBLIC "-//W3C//DTD HTML 4.0 Transitional//EN">
<HTML>
<head>
    <meta http-equiv="content-type" content="text/html; charset=utf-8"/>

</HEAD>

<BODY>

<div id="contain">
    <div id="a">a </div>
    <div id="b">b </div>
    <div id="c">c </div>
</div>

<script>
/*马克-to-win： DIV object: Inherits from Element object，
 Element object Inherits from Node object
 b 是个 DIV object.
    */
var b = document.getElementById("b");
var c = b.parentNode;
/*Node.removeChild() (Method)
A method for removing child nodes from the collection.

Property/method value type: Node object
JavaScript syntax: - myNode.removeChild(aNode)
Argument list: aNode The node object to be removed
*/
var cs=document.getElementById("contain");
alert("c===cs is "+(c===cs));
c.removeChild(b);
</script>
</BODY>
</HTML>