Help with flash floating away

Hello,

I insert a flash code into node as following:

<div id="container"><a href="http://www.macromedia.com/go/getflashplayer">Get the Flash Player</a> to see this player.</div>
<script type="text/javascript" src="swfobject.js"></script>
<script type="text/javascript">
	var s1 = new SWFObject("mediaplayer.swf","mediaplayer","480","385","7");
	s1.addParam("allowfullscreen","true");
	s1.addVariable("width","480");
	s1.addVariable("height","360");
	s1.addVariable("file","***.flv");
	s1.addVariable("image","***/welcome.jpg");
	s1.write("container");
</script>

The flash player float to the top, as you can see here.

Anyone can help to solve this problem? Thanks a lot.

-Derek