can someone tell me what is wrong i tried doing what was posted but all i got was a black box with nothing playing www.graphxsigns.net
<!--bof-branding display-->
<div id="logoWrapper">
<script type="text/javascript" src="includes/templates/classic/jscript/swfobject.js"></script>
<div id="flashcontent">

</div>
<script type="text/javascript">
var so = new SWFObject("includes/templates/classic/images/flash/logobanner.swf", "logobanner.swf", "750", "160", "7", "#000000");
so.write("flashcontent");
</script>