在html代码中找到swf所在段，加入以下参数：
<param name="wmode" value="opaque">
<embed ... wmode="opaque" ..></embed>
以下为一则范例：
<object classid="clsid27CDB6E-AE6D-11cf-96B8-444553540000" codebase="http://download.macromedia.com/pub/shockwave/cabs/flash/swflash.cab#version=7,0,19,0" width="550" height="400">
<param name="movie" value="flash_encrypt.swf">
<param name="quality" value="high">
<param name="wmode" value="opaque">
<embed src="flash_encrypt.swf" width="550" height="400" quality="high" pluginspage="http://www.macromedia.com/go/getflashplayer" type="application/x-shockwave-flash" wmode="opaque"></embed>
</object>
