anchor.diff:         <% while (i < (num_img-1)) do %>
            <% if !i.odd? %>
              <tr>
  -             <td>
  +             <td align="center">
                  <%= image_tag @ad.ad_images[i].image(:thumb) %>
                </td>
            <% else %>
  -             <td>
  +             <td align="center">
                  <%= image_tag @ad.ad_images[i].image(:thumb) %>
                </td>
              </tr>
  
positive.code:     <!-- IMAGENS -->
      <% if num_img > 0 %>
        <td>
          <table class="adImages" align="center">
          <tr>
          <td colspan=2>
          <div id="imageCarousel" class="carousel slide">
            <ol class="carousel-indicators">
  	          <li data-target="#myCarousel" data-slide-to="0" class="active"></li>
  
negative.code:        <% end %>
         <% if !i.odd? %>
           <tr>
             <td colspan="2" align="center">
               <%= image_tag @ad.ad_images[i].image(:thumb) %>
             </td>
           </tr>
  