如何让层位于flash对象之上 (Flash背景透明)

按如下任一方法设置设置FLASH对象的属性
<param name="wmode" value="transparent"> FLASH将透明
<param name="wmode" value="Opaque"> FLASH仍将保持不透明

具体应用如下：
 <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="776" height="120">
        <param name="movie" value="main.swf">
        <param name="quality" value="high">
        <param name="wmode" value="transparent">
        <param name="menu" value="false">
        <embed src="main.swf" width="776" height="120" quality="high" pluginspage="http://www.macromedia.com/go/getflashplayer" type="application/x-shockwave-flash" wmode="transparent" menu="false"></embed></object>