I solved this way:
<!-- Game embedding -->
<script type="text/javascript">
var attributes = {id: "gm", name: "Game name"};
swfobject.embedSWF("game.swf", "gm", "720", "480", "9.0", null, attributes);
</script>
<div id="gm_container">
<div id="gm" style="height:480; witdh=:720;">
</div>
</div>
<!-- Game embedding -->