[Plugin: Special Recent Posts] Infinite Scroll

Maybe change something in this code I have for infinite scroll?

<script type="text/javascript">
    jQuery(document).ready(function($) {
        var count = 2;
        var total = <?php echo $wp_query->max_num_pages; ?>;
        $(window).scroll(function(){
                if  ($(window).scrollTop() == $(document).height() - $(window).height()){
                   if (count > total){
                   	  	return false;
                   }else{
                   		loadArticle(count);
                   }
                   count++;
                }
        }); 

        function loadArticle(pageNumber){
                $('a#inifiniteLoader').show('fast');
                $.ajax({
                    url: "<?php bloginfo('wpurl') ?>/wp-admin/admin-ajax.php",
                    type:'POST',
                    data: "action=infinite_scroll&page_no="+ pageNumber + '&loop_file=loop',
                    success: function(html){
                        $('a#inifiniteLoader').hide('1000');
                        $("#primary").append(html);    // This will be the div where our content will be loaded
                    }
                });
            return false;
        }

    });

</script>