Does the shortcode support wmode=opaque? I have traditionally used this to keep my dropdown menus in front of our embedded video content. With Youtube and Blip switching to iFrame to determine support for HTML5, I am using your plugin to support iFrame embeds. However, now my dropdown menus are going behind the videos (z-index doesn't work). I tried throwing a wmode=opaque in the shortcode but it doesn't look like it's working. Any input?