<?php {
            {
             $rotator = new WP_Query( 'tag=main_rotating' );
           } ?>
          <div class="slider-wrapper theme-default main-image desktop">
            <div id="slider" class="nivoSlider">
              <?php if( $rotator->have_posts() ) : while( $rotator->have_posts() ) : $rotator->the_post();
                  ?>
                    <?php
                      $image_url = get_post_meta( get_the_ID(), 'rotatimg-image-save', true );
                      $attachment = get_post( get_attachment_id_from_src( $image_url ) );
                      $test = get_post( $image_url );
                      // echo '<pre>'; print_r($test->post_excerpt); echo '</pre>'
                    ?>
                    <a href="<?php echo $test->post_excerpt ?>" target="_blank">
                    <img src="<?php echo wp_get_attachment_url( $image_url ); ?>">
                    </a>
              <?php endwhile; endif; wp_reset_postdata(); ?>
            </div>
        </div> <?php
      }
      ?>

        <?php {
            {
             $mobile_rotator = new WP_Query( 'tag=mobile_main_rotating' );
           } ?>
          <div class="slider-wrapper theme-default main-image mobile">
            <div id="slider" class="nivoSlider">
              <?php if( $mobile_rotator->have_posts() ) : while( $mobile_rotator->have_posts() ) : $mobile_rotator->the_post();
                  ?>
                    <?php
                      $mobile_image_url = get_post_meta( get_the_ID(), 'rotatimg-image-save', true );
                      $image = get_post( get_attachment_id_from_src( $mobile_image_url ) );
                      $mobile_post = get_post( $mobile_image_url );
                      // echo '<pre>'; print_r($mobile_post->post_excerpt); echo '</pre>'
                    ?>
                    <a href="<?php echo $mobile_post->post_excerpt ?>" target="_blank">
                    <img src="<?php echo wp_get_attachment_url( $mobile_image_url ); ?>">
                    </a>
              <?php endwhile; endif; wp_reset_postdata(); ?>
            </div>
        </div> <?php
      }
      ?>