Help wanted getting video.js to work with IE8 and FF

I'm looking for a little js guidance with this:
http://www.videojs.com/docs/setup/
This code I'm currently using plays the video.js player in IOS, IE10 & Chrome, but not IE8 and FF

   <script _V_.options.flash.swf = "http://theurl.com/video-js/video.js.swf"
</script>
<script videojs.options.flash.swf = "http://theurl.com/video-js/video.js.swf"
</script>
<video id="_1200k.mp4" class="video-js vjs-default-skin"
      controls preload="none" width="640" height="264"
      poster="[var.base_url]/[var.thumb_file]"
      data-setup='{"example_option":true}'>
      <source src="http://theurl.com/uploads/Yr7fGNOH0ell3Ml_1200k.mp4" type='video/mp4' />
</video>

Code (markup):

I'd like help getting it to work in IE8 and FF. Any help will be greatly appreciated.

 

IE8 does not support HTML5 which the <video> tag is. You need to add a conditional like I've made in the code below.

<!-- ie8 and lower -->
<!--[if lt IE 9]>
<object width="640" height="264" data="http://theurl.com/uploads/Yr7fGNOH0ell3Ml_1200k.mp4""></object>
<![endif]-->
 
<!-- html5 supported browser -->
<!--[if gte IE 9]>
<script _V_.options.flash.swf = "http://theurl.com/video-js/video.js.swf"></script>
<script videojs.options.flash.swf = "http://theurl.com/video-js/video.js.swf"></script>
<video id="_1200k.mp4" class="video-js vjs-default-skin"
      controls preload="none" width="640" height="264"
      poster="[var.base_url]/[var.thumb_file]"
      data-setup='{"example_option":true}'>
      <source src="http://theurl.com/uploads/Yr7fGNOH0ell3Ml_1200k.mp4" type='video/mp4' />
</video>
<![endif]-->

Code (markup):

 

Generally speaking I'm of the opinion that if you need javascript for a flash embed, you're doing something WRONG. I don't know what this 'video.js' crap is, but I'd swing a massive axe at it as pointless BS.