设置浮动的广告可以浮动在flash上面

<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="1003" height="120">
   <param name="wmode" value="transparent">
      <param name="movie" value="/images/default/dy2009_index_head_1.swf" />
      <param name="quality" value="high" />
      <embed wmonde="transparent" src="/images/default/dy2009_index_head_1.swf" quality="high" pluginspage="http://www.adobe.com/shockwave/download/download.cgi?P1_Prod_Version=ShockwaveFlash" type="application/x-shockwave-flash" width="1003" height="120"></embed>
    </object>

  <param name="wmode" value="transparent">
-----支持IE;

wmonde="transparent"

------支持ff