在插入flash的代码中插入<param name="wmode" value="transparent">即可实现flash背景透明
如:
<table width="605" height="136" border="0" cellpadding="0" cellspacing="0" background="http;//www.dabaoku.com/flash/images/logo5.jpg"> <!--设置单元格背景为图片背景(当然要放一个好看的了) -->
<tr>
<td><object class>
<param name="movie" value="http://www.dabaoku.com/flash/flash/132.swf">
<param name="quality" value="high">
<param name="wmode" value="transparent"> <!--这里代码可使Flash背景透明 -->
<embed src="http://www.dabaoku.com/flash/flash/132.swf" width="605" height="136" quality="high" pluginspage="http://www.macromedia.com/go/getflashplayer" type="application/x-shockwave-flash" wmode="transparent"></embed>
</object></td>
</tr>
</table>