One page search result using ajax

Place the below code at the end of

appdesignfrontendthemedefaulttemp‌​latecatalogsearchr‌​esult.phtml

<script>
    jQuery(function () {
        jQuery(body).bind('scroll', function () {
            if (jQuery(this).scrollTop() + jQuery(this).innerHeight() + 200 >= jQuery(this)[0].scrollHeight) {
                if (jQuery.active <= 0) {
                    jQuery(".ajax-loader").show();
                    var nextPageUrl = jQuery('.pages .i-next').attr('href');
                    if (nextPageUrl == undefined) {
                        jQuery(".ajax-loader").hide();
                    } else {
                        jQuery.ajax({
                            url: nextPageUrl,
                            success: function (msg)
                            {
                                jQuery(".ajax-loader").hide();
                                    //refresh the page class element
                                jQuery('.pages').html(jQuery(msg).find('.pages').html());
                                    //append the list to the existing product list
                                jQuery('.category-products').append(jQuery(msg).find('.category-products').html());
                                    //check if there are more products to be loaded or not
                                return false;
                            }
                        });
                    }
                }
            }
        });
    });

</script>