关于FLASH和层的问题

<div style="z-index:-1">---------------------------------设置为最地层
<object classid="clsid:D27CDB6E-AE6D-11cf-96B8-444553540000" codebase="http://download.macromedia.com/pub/shockwave/cabs/flash/swflash.cab#version=6,0,29,0" width="100%" height="140">
<param name="movie" value="image/flash/CPZG.swf">
<param name="quality" value="high">
<embed src="image/flash/CPZG.swf" quality="high" pluginspage="http://www.macromedia.com/go/getflashplayer" type="application/x-shockwave-flash" width="100%" height="140"></embed>
<param name="wmode" value="transparent">-------------------设置为透明  
</object> 
</div>