mediaplayer 自动播放功能

3秒后，mediaplayer自动播放

<script language=javascript>
setTimeout("playMethod()",3000);
function playMethod(){
wmp.play();
}
</script>

<div>
<embed src="<%=request.getParameter("url") %>" id="wmp" align="baseline" border="0" width="250" height="50" type="application/x-mplayer2"
pluginspage="http://www.microsoft.com/isapi/redir.dll?prd=windows&sbp=mediaplayer&ar=media&sba=plugin&"
name="MediaPlayer" showcontrols="1" showpositioncontrols="0"
showaudiocontrols="1" showtracker="1" showdisplay="0"
showstatusbar="1"
autosize="0"
showgotobar="0" showcaptioning="0" autostart="0" autorewind="0"
animationatstart="0" transparentatstart="0" allowscan="1"
enablecontextmenu="1" clicktoplay="0" invokeurls="1"
defaultframe="datawindow">
</embed>
</div>