<?php

function ba_slider() {
        global $post;
        $args = array(
		'post_type' => 'rotator',
		);

	$slides = new WP_Query($args);
	if ($slides->have_posts()) {
		?>
		<div class="flexslider">
			<ul class="slides">
			<?php
			$i = 0;
			while ( $slides->have_posts() ) {
				$slides->the_post();
				$img = get_the_post_thumbnail($post->ID, 'ba_slider');
				$prev = ( $i !== 0 ) ? '<a class="prev" href="#">Back</a>' : '';
				$next = ( $slides->current_post == ( $slides->found_posts - 1 ) ) ? '' : '<a class="next" href="#">Next</a>'; ?>
				<li>
					<?php echo $img; ?>
					<div class="slidertext">
						<h3><?php the_title(); ?></h3>
						<p><?php the_content(); ?></p>
						<?php echo $prev . $next; ?>
				</li>
				<?php $i++;
			}
			?>
			</ul>
		</div><?php
	}
}