jQuery + 플래쉬위에 레이어 위치시기는 방법

<script type="text/javascript" src="http://ajax.googleapis.com/ajax/libs/jquery/1.3.2/jquery.min.js"></script>
<script type="text/javascript">
$(document).ready(function(){
if($.browser.msie){
//$("#Layer1").css("margin-left", "580px"); //iframe
$("#Layer1").css("margin-left", "670px");
} else {
//$("#Layer1").css("margin-left", "290px"); //iframe
$("#Layer1").css("margin-left", "650px");
}
});
</script>

<table height="100%" border="0" cellpadding="0" cellspacing="0" style="width:100%; text-align:center;">
<tr>
<td align="center" valign="top"style="width:999px;padding:0px;" background="img/bg.jpg">
<object classid="clsid:D27CDB6E-AE6D-11cf-96B8-444553540000" codebase="http://download.macromedia.com/pub/shockwave/cabs/flash/swflash.cab#version=9,0,28,0" width="999" height="700">
<param name="movie" value="flash.swf" />
<param name="quality" value="high" />
<param name="wmode" value="transparent" />
<embed src="flash.swf" width="999" height="700" quality="high" pluginspage="http://www.adobe.com/shockwave/download/download.cgi?P1_Prod_Version=ShockwaveFlash" type="application/x-shockwave-flash" wmode="transparent"></embed>
</object>
<!--
<div id="Layer1" style="width:100%;text-align:center; margin-top:-280px;">
<iframe name=board src="mainform.html" width=380 height=250 frameborder=0 allowTransparency="true"></iframe>
</div>
-->
<div id="Layer1">
<table width="300" border="0" cellspacing="0" style="margin-top:-300px;">
<tr><td></td></tr>
</table>
</div>
</td>
</tr>
</table>