NextGEN Gallery WP trouble

<script type="text/javascript" defer="defer">

    jQuery(document).ready(function(){

    jQuery("#ngg-slideshow-1-5-1").nggSlideshow( {id: 1,fx:"fade",width:640,height:400,domain: "http://jchapman.us/",timeout:10000});

Uncaught TypeError: Object [object Object] has no method 'nggSlideshow'

});

</script>