I'm trying to create a function that calls random videos from an XML playlist in AS3 and have no idea to randomization. Please help!
XML:
<?xml version="1.0" encoding="UTF-8"?>
<playlist id="Videoplayer" >

<vid desc="ClipTube1"
src="VideoClipTube1.flv" />
<vid desc="ClipTube2"
src="VideoClipTube2.flv" />
<vid desc="ClipTube3"
src="VideoClipTube3.flv" />
</playlist>
AS3:
Code:
public function VideoPlaylistSeq():void
		{
			// Load the playlist file, then initialize the media player.
			xmlLoader = new URLLoader();
			xmlLoader.addEventListener(Event.COMPLETE, initMediaPlayer);
			xmlLoader.load(new URLRequest("Playlist.xml"));
			// Format the tileList, specify its cellRenderer class.;
			tileList.setSize(100, 350);
			tileList.columnWidth = 80;
			tileList.rowHeight = 60;
			tileList.direction = ScrollBarDirection.VERTICAL;
			tileList.setStyle("cellRenderer", Thumb);
		}

		public function initMediaPlayer(event:Event):void
		{
			
			var myXML:XML = new XML(xmlLoader.data);
                        //my randomization code??
			var item:XML = xmlLoader.data[Math.floor(xmlLoader.data.length() * Math.random())];
			for each (item in myXML.vid)
			{// populate playlist.
				// Get thumbnail value and assign to cellrenderer.
				var thumb:String;
				if (item.hasOwnProperty("@thumb") > 0)
				{
					thumb = item. @ thumb;
				}// Send data to tileList.
				tileList.addItem({label:item.attribute("desc").toXMLString(), 
				data:item.attribute("src").toXMLString(),
				source:thumb});
			}
			// Select the first video.
			tileList.selectedIndex = 0;
			// Listen for item selection.
			tileList.addEventListener(Event.CHANGE, listListener);
			// And automatically load it into myVid.;
			myVid.source = tileList.selectedItem.data;
			// Pause video until selected or played.
			//myVid.pause();
			// Listen for end of current video, then play the next
			myVid.addEventListener(VideoEvent.COMPLETE, vidComplete);
		}

		// Detect when new video is selected, and play it
		function listListener(event:Event):void
		{
			myVid.play(event.target.selectedItem.data);
		}

		// listen for complete event; play next video
		function vidComplete(eventObject:VideoEvent):void
		{
			if (tileList.selectedIndex < tileList.length - 1)
			{
				tileList.selectedIndex = tileList.selectedIndex + 1;
				tileList.scrollToIndex(tileList.selectedIndex);
				myVid.play(tileList.selectedItem.data);

				}