I have the following code

<object id="obj1" type="application/x-shockwave-flash" data="index.files/html5video/flashfox.swf" width="700px" height="900px" style="position:relative;">
<param name="movie" value="index.files/html5video/flashfox.swf" />
<param name="allowFullScreen" value="true" />
<param name="flashVars" value="autoplay=true&amp;controls=false&amp;fullScreenEnabled=true&amp;loop=true&amp;src=output.m4v" />
<embed src="index.files/html5video/flashfox.swf" width="700px" height="900px" style="position:relative;" flashVars="autoplay=true&amp;controls=false&amp;fullScreenEnabled=true&amp;loop=true&amp;src=output. m4v" allowFullScreen="true" wmode="transparent" type="application/x-shockwave-flash" pluginspage="http://www.adobe.com/go/getflashplayer_en" />

</object>

but when I play this, it has audio. I want to mute this video. what do add to mute this video? thanks