cufon help needed

Here is the code I have been trying to use. Previously I had no results using the cufon plugin so I started to code it this way… what is the the problem here? no fonts are changes anywhere in the site.

<script type="text/javascript" src="http://www.adubsdesign.com/js/cufon-yui.js"></script>

<script type="text/javascript" src="http://www.adubsdesign.com/js/AvantGardeMdITCTT_700.font.js"></script>

<script type="text/javascript" src="http://www.adubsdesign.com/js/Futura_Std_700.font.js"></script>

<script type="text/javascript" src="http://www.adubsdesign.com/js/Berthold_Akzidenz_Grotesk_BE_700.font.js"></script>

<script type="text/javascript">

Cufon.replace('h2',{fontFamily: 'Futura',fontWeight: 'bold'});

Cufon.replace('#menu',{fontFamily: 'BertholdAkzidenzGroteskBE',fontWeight:'bold'});	

Cufon.replace('.shop_image_text',{fontFamily: 'Futura',fontWeight:'bold'});

Cufon.replace('.post_title',{fontFamily: 'Futura',fontWeight:'bold',fontSize:'16px',hover:'true'});

</script>