Чередование фона - Дизайн и модификация Invision Power Board

        <script src="/jquery.js"></script>
<script type="text/javascript">
$(function(){
  $('.bg-post:odd').addClass('bg-change');
})
</script>
			<foreach loop="post_data:$post_data as $post">

<div class='bg-post'>       

				{parse template="post" group="topic" params="$post, $displayData, $topic, $forum"}
        </div>       
			</foreach>

<if test="hasPosts:|:is_array( $post_data ) AND count( $post_data )">
		<div id='ips_Posts'>
  <style>
   .bg-post:nth-child(2n) {
    background: #fafafa !important; /* Цвет фона */
   }    
  </style>
  			<foreach loop="post_data:$post_data as $post">

<div <if test="$post['post']['post_count']==1"> class='bg-change' <else />class='bg-post'</if> >       

				{parse template="post" group="topic" params="$post, $displayData, $topic, $forum"}
</div>       
			</foreach>
	</div>
    </if> 

<if test="hasPosts:|:is_array( $post_data ) AND count( $post_data )">
        <div id='ips_Posts'>
  <style>
   .bg-post:nth-child(2n+1) {
    background: #fafafa !important; /* Цвет фона */
   }    
  </style>
            <foreach loop="post_data:$post_data as $post">

<div class='bg-post'>       

                {parse template="post" group="topic" params="$post, $displayData, $topic, $forum"}
</div>       
            </foreach>
    </div>
    </if>