#trailimageid
{
   font-size: 0.75em;
   position: absolute;
   display: none;
   left: 0px;
   top: 0px;
   width: 520px;
   height: 0px;
   z-index: 200;
}
<DIV ID="Floating"  style="position: absolute; top:  0px; left: 0px; z-index:1;">
<object classid="clsid:D27CDB6E-AE6D-11cf-96B8-444553540000" codebase="http://download.macromedia.com/pub/shockwave/cabs/flash/swflash.cab#version=7,0,19,0" width="951" height="220" >
<param name="movie" value="files/testflash.swf" />
<param name="quality" value="high" />
<param name="allowScriptAccess" value="always" />
<param name="wmode" value="transparent" />
<embed src="files/testflash.swf" quality="high" pluginspage="http://www.macromedia.com/go/getflashplayer" type="application/x-shockwave-flash" width="951" height="220" allowScriptAccess="always" wmode="transparent">
</embed></object>