利用AJAX实现WordPress中的文章列表及评论的分页功能

<!-- 包含所有文章的容器 -->
<div id="content">
  <!-- 各文章的容器 -->
  <div class="post"></div>
  <div class="post"></div>
  <div class="post"></div>
  <div class="post"></div>
  <div class="post"></div>
</div>

<div id="pagination"><?php next_posts_link(__('LOAD MORE')); ?></div>

// 使用 live() 使 js 对通过 Ajax 获得的新内容仍有效
  $("#pagination a").live("click", function(){
    $(this).addClass("loading").text("LOADING...");
    $.ajax({
  type: "POST",
      url: $(this).attr("href") + "#content",
      success: function(data){
        result = $(data).find("#content .post");
        nextHref = $(data).find("#pagination a").attr("href");
        // 渐显新内容
        $("#content").append(result.fadeIn(300));
        $("#pagination a").removeClass("loading").text("LOAD MORE");
        if ( nextHref != undefined ) {
          $("#pagination a").attr("href", nextHref);
        } else {
        // 若没有链接，即为最后一页，则移除导航
          $("#pagination").remove();
        }
      }
    });
    return false;
  });

// 给浏览器窗口绑定 scroll 事件
$(window).bind("scroll",function(){
// 判断窗口的滚动条是否接近页面底部
if( $(document).scrollTop() + $(window).height() > $(document).height() - 10 ) {
  $(this).addClass('loading').text('LOADING...');
  $.ajax({
    type: "POST",
    url: $(this).attr("href") + "#content",
    success: function(data){
      result = $(data).find("#content .post");
      nextHref = $(data).find("#pagination a").attr("href");
      // 渐显新内容
      $("#content").append(result.fadeIn(300));
      $("#pagination a").removeClass("loading").text("LOAD MORE");
      if ( nextHref != undefined ) {
        $("#pagination a").attr("href", nextHref);
      } else {
      // 若没有链接，即为最后一页，则移除导航
        $("#pagination").remove();
      }
    }
  });
}
});

#pagination {padding: 20px 0 0 30px; }
#pagination .nextpostslink {width: 600px; color: #333; text-decoration: none; display: block; padding: 9px 0; text-align: center; font-size: 14px; }
#pagination .nextpostslink:hover {background-color: #cccccc; text-decoration: none; border-radius: 5px; -moz-border-radius: 5px; -webkit-border-radius: 5px; }
#pagination .loading {background: url("images/loading.gif") 240px 9px no-repeat; color: #555; }
#pagination .loading:hover {background-color: transparent; cursor: default; }

<nav id="comments-navi">
  <?php paginate_comments_links('prev_text=?&next_text=?');?>
</nav>

<?php if( is_single() || is_page() ) {
  if( function_exists('get_query_var') ) {
    $cpage = intval(get_query_var('cpage'));
    $commentPage = intval(get_query_var('comment-page'));
  }
  if( !empty($cpage) || !empty($commentPage) ) {
    echo '<meta name="robots" content="noindex, nofollow" />';
    echo "\n";
  }
}
?>

<div class="comments">
  <h3 id="comments-list-title">Comments</h3>
  <!-- 显示正在加载新评论 -->
  <div id="loading-comments"><span>Loading...</span></div>
  <!-- 评论列表 -->
  <ol class="comment_list">    
    <li>...</li>
    <li>...</li>
    <li>...</li>
  </ol>
  <!-- 评论分页导航 -->
  <nav id="comments-navi">
    <a class="prev page-numbers" href="#">1</a>
    ...
  </nav>
</div>

// 评论分页
$body=(window.opera)?(document.compatMode=="CSS1Compat"?$('html'):$('body')):$('html,body');
// 点击分页导航链接时触发分页
$('#comments-navi a').live('click', function(e){
  e.preventDefault();
  $.ajax({
    type: "GET",
    url: $(this).attr('href'),
    beforeSend: function(){
      $('#comments-navi').remove();
      $('.comment_list').remove();
      $('#loading-comments').slideDown();
      $body.animate({scrollTop: $('#comments-list-title').offset().top - 65}, 800 );
    },
    dataType: "html",
    success: function(out){
      result = $(out).find('.comment_list');
      nextlink = $(out).find('#comments-navi');
      $('#loading-comments').slideUp('fast');
      $('#loading-comments').after(result.fadeIn(500));
      $('.comment_list').after(nextlink);
    }
  });
});