jQuery插件jPaginate实现无刷新分页

<div id="pagetxt"> 
  <?php 
  $query = mysql_query("select id,title,addtime from article order by id desc limit 0, 6"); 
  while ($row = mysql_fetch_array($query)) { 
    $pubdate = date("Y-m-d", $row['addtime']); 
    echo '<p><span>' . $pubdate . '</span><a href="https://www.jb51.net/js/' . $row['id'] . '.html" target="_blank">' . $row['title'] . '</a></p>'; 
  } 
  mysql_close(); 
  ?> 
</div>

$("#demo3").paginate({ 
  count: <?php echo $page; ?>, //总记录数 
  start: 1, //开始显示的页数 
  display: 5, //分页条显示的页数 
  border: true, //是否显示页码的边框 
  border_color: '#BEF8B8', //设置边框的颜色 
  text_color: '#79B5E3', //设置页码的颜色 
  background_color: '#E3F2E1', //设置页码的背景色 
  border_hover_color: '#68BA64', //设置鼠标滑向页码时页码边框的颜色 
  text_hover_color: '#2573AF', //设置鼠标滑向页码时页码的颜色 
  background_hover_color: '#CAE6C6', //设置鼠标滑向页码时页码背景的颜色 
  images: false, //是否显示页码导航箭头 
  mouse: 'press', //设置为'press'时，当鼠标滑向导航箭头时，页码随之滚动；设置为'slide'时，鼠标单击一次导航箭头页码滚动一次。 
  onChange: function(page) { //当单击页码时，回调函数. 
  $("#pagetxt").load("article.php?p=" + page); 
  } 
});
article.php
$p = isset($_GET['p']) ? intval($_GET['p']) : ""; 
 
$result = mysql_query("select id from article"); 
$total = mysql_num_rows($result); 
 
$pagesize = 6; //每页显示数 
$page = ceil($total / $pagesize); //总页数 
if ($p) { 
  $startPage = ($p - 1) * $pagesize; 
  $query = mysql_query("select id,title,addtime from article order by id desc limit $startPage, $pagesize"); 
  while ($row = mysql_fetch_array($query)) { 
    $pubdate = date("Y-m-d", $row['addtime']); 
    echo '<p><span>' . $pubdate . '</span><a href="https://www.jb51.net/js/' . $row['id'] . '.html" target="_blank">' . $row['title'] . '</a></p>'; 
  } 
}