Browser detection using jquery

include jquery library:

<script src="http://code.jquery.com/jquery-latest.js"></script>

detect browser:

<script src="http://code.jquery.com/jquery-latest.js"></script>
<script>
 $(document).ready(function(){
  if ( $.browser.mozilla) {
   $(".chromeVideo").css("display", "none");
  }else{
   $(".firefoxVideo").css("display", "none");
  }
 });
</script>