Modification Question...

[Winterworks]

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<phrase 1="$vboptions[bbtitle]">vBulletin Song Player Hack - vBulletin 3.7.3 Modification Made by Mike </phrase> 
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<object classid="clsid:6BF52A52-394A-11D3-B153-00C04F79FAA6" id="WindowsMediaPlayer1" width="300" height="32" codebase="">
<param name="URL" ref value="includes/music">
<param name="rate" value="1">
<param name="balance" value="0">
<param name="currentPosition" value="0">
<param name="defaultFrame" value>
<param name="playCount" value="1">
<param name="autoStart" value="0">
<param name="currentMarker" value="0">
<param name="invokeURLs" value="-1">
<param name="baseURL" value>
<param name="volume" value="100">
<param name="mute" value="0">
<param name="uiMode" value="full">
<param name="stretchToFit" value="0">
<param name="windowlessVideo" value="0">
<param name="enabled" value="-1">
<param name="enableContextMenu" value="-1">
<param name="fullScreen" value="0">
<param name="Style" value>
<param name="Lang" value>
<param name="Filename" value>
<param name="captioningID" value>
<param name="enableErrorDialogs" value="0">
<param name="_cx" value="6482">
<param name="_cy" value="1693">
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This was a modification made by me.

How can I get it to play every song in the includes/music folder? Like randomly select them, and each time a song ends, randomly select a new one.

How would I do this? Can someone edit my code for me?