Help Regarding XML

programming flash
1

I have to insert some xml entry into existing xml . I am including the code used

var myXml:XML = <playerr>
<playlist>
<name>Playlist 1</name>
<image>http://images.com/playlist1.jpg</image>
<video>
<name>Item 11</name>
<image>http://images.com/item11.jpg</image>
<url>http://videos.com/item11.flv</url>
</video>
<video>
<name>Item 12</name>
<image>http://images.com/item12.jpg</image>
<url>http://videos.com/item12.flv</url>
</video>
<video>
<name>Item 13</name>
<image>http://images.com/item13.jpg</image>
<url>http://videos.com/item13.flv</url>
</video>
<video>
<name>Item 14</name>
<image>http://images.com/item14.jpg</image>
<url>http://videos.com/item14.flv</url>
</video>
</playlist>

&lt;playlist&gt;
	&lt;name&gt;Playlist 2&lt;/name&gt;
	&lt;image&gt;[http://images.com/playlist2.jpg&lt;/image&gt;](http://images.com/playlist2.jpg%3C/image%3E)
	&lt;video&gt;
		&lt;name&gt;Item 21&lt;/name&gt;
		&lt;image&gt;[http://images.com/item21.jpg&lt;/image&gt;](http://images.com/item21.jpg%3C/image%3E)
		&lt;url&gt;[http://videos.com/item21.flv&lt;/url&gt;](http://videos.com/item21.flv%3C/url%3E)
	&lt;/video&gt;
	&lt;video&gt;
		&lt;name&gt;Item 22&lt;/name&gt;
		&lt;image&gt;[http://images.com/item22.jpg&lt;/image&gt;](http://images.com/item22.jpg%3C/image%3E)
		&lt;url&gt;[http://videos.com/item22.flv&lt;/url&gt;](http://videos.com/item22.flv%3C/url%3E)
	&lt;/video&gt;
	&lt;video&gt;
		&lt;name&gt;Item 23&lt;/name&gt;
		&lt;image&gt;[http://images.com/item23.jpg&lt;/image&gt;](http://images.com/item23.jpg%3C/image%3E)
		&lt;url&gt;[http://videos.com/item23.flv&lt;/url&gt;](http://videos.com/item23.flv%3C/url%3E)
	&lt;/video&gt;
	&lt;video&gt;
		&lt;name&gt;Item 24&lt;/name&gt;
		&lt;image&gt;[http://images.com/item24.jpg&lt;/image&gt;](http://images.com/item24.jpg%3C/image%3E)
		&lt;url&gt;[http://videos.com/item24.flv&lt;/url&gt;](http://videos.com/item24.flv%3C/url%3E)
	&lt;/video&gt;
	&lt;/playlist&gt;

</player>

trace(myXml.insertChildBefore(myXml.playlist[0].video[0],<help>Gr8</help>));

After executing i am getting undefined as result.

Could anybody find out what mistake I am doing. ( I have to insert xml node before video[0] in playlist[0]).

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