banner interval

$count=0;
                                    //pecorrendo os registros da consulta.

                                  while ($aux = mysqli_fetch_assoc($sql)) {


echo '<div class="col-lg-4 col-md-4 col-sm-6 col-xs-12">';

echo '<div class="single-item-grid">';
echo '<div class="item-img">';
echo '<a href="'.INCLUDE_PATH.'rifas/'.$aux['categoria'].'/'.$aux['slug'].'"><img src="'.INCLUDE_PATH.'painel/uploads/'.$aux['capa'].'" data-original="'.INCLUDE_PATH.'painel/uploads/'.$aux['capa'].'" alt="'.$aux['titulo'].'" class="img-responsive" style="display: block;"></a>';
echo '</div>';

echo '<!--<div class="bg-barra-pagos-item"><div class="barra" style="width: 1%;"><div class="pct" style="right: 2px;">1</div></div></div>-->';
echo '<div class="item-content">';
echo '<div class="item-info">';
echo '<h3><a href="'.INCLUDE_PATH.'rifas/'.$aux['categoria'].'/'.$aux['slug'].'">'.$aux['titulo'].'</a></h3>';
echo '<span>Sorteio dia '.date('d/m/Y', strtotime($aux['data'])).'</span>';
echo '<div class="price">'.$aux['cost'].'</div>';
echo '</div>';
echo '</div>';
echo '</div>';

'</div>';

                                        $count++;
                                        if($count == 3){
                                        //echo "<div style=\"margin: 3%\">";
                                        //echo "<img src=\"images/add/5.jpg\">";
                                        //echo "</div>";
                                        echo "<!-- ANÚNCIO --> ";
                        echo "<div class=\"row\">";
                                echo "<img src=\"https://www.teamdrilling.com/wp-content/uploads/2013/10/team-about-banner-980x180.jpg\">";
                        echo "</div>";
                    echo "<!-- ANÚNCIO --> ";
                    echo "<br>";
                                        $count=0;
                                        }



                                  }