Embed Flash Movie 100% for Firefox and Internet Explorer

I needed a flash movie to displayed at 100% in my web page. I thought this will be a simple job. Just set the height and width attributes within my object tag to “100%”. This method worked fine for Internet Explorer but failed in Firefox. Firefox seemed to ignore my size settings that contained a percentage. After a lot of time wasting, I confirmed that Firefox does not like its height and width attributes measured in percentages and only likes measurements in pixels.

In order to fix this problem I needed to do the following:

  1. Write some JavaScript just for Firefox so that it will get the users screen resolution in pixels and add this into my object tag that contained my Flash movie.

    <script type="text/javascript" language="javascript">
        if (window.innerWidth)
            // Get screen width and height minus scroll bars
            var width = window.innerWidth - 24;
            var height = window.innerHeight - 24;           
            //Find Flash movie
            var FlashMovie = document.getElementById('FlashMovie');           
            //Only assign width and height if browswer is not Internet Explorer
            if (navigator.appName.indexOf('Internet Explorer') == -1)
                FlashMovie.height = height;
                FlashMovie.width = width;        
  2. Keep the height=”100%” width=”100%” object attributes. This will be needed for Internet Explorer.

    <object id="FlashMovie" type="application/x-shockwave-flash" height="100%" width="100%" data="myflash.swf">
    <param name="movie" value="myflash.swf" />
    <param name="wmode" value="transparent" />
        No flash message

If anyone has any better idea on how to solve this problem. Please comment. Thanks!