Ajax фильтр доп.полей

<script>
function loadXfieldOnajax(xfield){
    ShowLoading('');
    $.get('/xfsearch/'+encodeURIComponent(xfield)+'/', function(data){
        HideLoading('');
        $("#dle-content").html(data);
    });
}
</script>

<a onclick="loadXfieldOnajax('BMV');return false;" href="/xfsearch/BMV/">BMV</a>

if(isset($_SERVER['HTTP_X_REQUESTED_WITH']) && !empty($_SERVER['HTTP_X_REQUESTED_WITH']) && strtolower($_SERVER['HTTP_X_REQUESTED_WITH']) == 'xmlhttprequest') {
    @header( "Content-type: text/html; charset=" . $config['charset'] );

    echo $tpl->result['content'];

    exit;
}