So I'm creating infinite scrolling for my blog. It should essentially pull out ONE post after the scroll. I'm pulling it through Ajax. The problem is, Ajax is posting the same post_id which I got after one scroll. I debugged it with firebug.For example: There is already a post with the post-id = 10. After I scroll, it appends the next post with the post-id = 11. But scrolls after that, it only appends the post with the post-id = 11, it does not append the post with the post-id = 12 and so on. What is the problem? Is there a problem with this (Posted:last) selector? How do I get the id of the last dynamically updated content?Here is my Index.php:\[code\]<?phpinclude 'resources/init.php';function get_posts($post_id = null, $tag_id = null){ $posts = array(); $query = "SELECT `posts`.`post_id` AS `posts_id`, `tags`.`tag_id` AS `tags_id`, `title`, `txt_content`, `img_content`, `date_posted`,`tag_name` FROM `posts` INNER JOIN `tags` ON `tags`.`tag_id` = `posts`.`tag_id`"; if(isset($post_id)){ $post_id = (int)$post_id; $query .= " WHERE `posts`.`post_id` = $post_id"; } if(isset($tag_id)){ $tag_id = (int)$tag_id; $query .= " WHERE `tags`.`tag_id` = $tag_id"; } $query .= " ORDER BY `posts`.`post_id` DESC LIMIT 0,1"; $query = mysql_query($query); while($row = mysql_fetch_assoc($query)){ $posts[] = $row; } return $posts;}$posts = (isset($_GET['post_id'])) ? get_posts($_GET['post_id']) : get_posts();?><!DOCTYPE html><html><head> <script src="http://code.jquery.com/jquery-1.9.1.js"></script></head><body><a hrefhttp://stackoverflow.com/questions/15457514/= "http://localhost/simpleblog/add_post.php">Add a Post</a> | <a hrefhttp://stackoverflow.com/questions/15457514/= "http://localhost/simpleblog/add_tag.php">Add a Tag</a> | <a hrefhttp://stackoverflow.com/questions/15457514/= "http://localhost/simpleblog/tag_list.php">Show Existing Tags</a> | <a hrefhttp://stackoverflow.com/questions/15457514/= ""></a><p><div id = "AddPosts"><?phpforeach($posts as $post){?> <div class = "Posted" id = "<?php echo $post['posts_id']; ?>"> <h2><a hrefhttp://stackoverflow.com/questions/15457514/= "http://localhost/simpleblog/looks/<?php echo $post['posts_id']; ?>-<?php $strings = array(" "); echo str_replace($strings, '-', preg_replace('/[^a-zA-Z0-9 s]/', '', $post['title'])); ?>"><?php echo $post['title'];?></a></h2> <div><?php echo nl2br($post['txt_content']);?></div> <div><img src = "http://localhost/simpleblog/<?php echo $post['img_content'];?>"></div> <p>Posted on <i><?php echo date("F dS\,\ Y", strtotime($post['date_posted'])); ?></i> in <a hrefhttp://stackoverflow.com/questions/15457514/= "http://localhost/simpleblog/tags/<?php echo $post['tags_id'];?>"><?php echo $post['tag_name']; ?></a></p> <div><a hrefhttp://stackoverflow.com/questions/15457514/= "http://localhost/simpleblog/edit_my_looks/<?php echo $post['posts_id'];?>">Edit This Post</a> | <a hrefhttp://stackoverflow.com/questions/15457514/= "http://localhost/simpleblog/delte_my_post/<?php echo $post['posts_id'];?>"> Delete This Post</a></div> </div><?php}?></div><center><img src = "http://stackoverflow.com/questions/15457514/loader.gif" id = "loading-img" width = "200" height = "200" style = "display:none" /></center><script>$(window).scroll(function(){ if ($(window).scrollTop() == $(document).height() - $(window).height()){ $('#loading-img').show(); var post_id = $('.Posted:last').attr('id'); $.post("add_more_posts.php", {post_id: post_id} , function(data){ if(data){ $('#loading-img').fadeOut(); $('#AddPosts').append(data); }else{ $('#AddPosts').append('Finished Loading!'); } }); }});</script></body></html>\[/code\]Add_more_posts.php\[code\]<?phpinclude 'resources/init.php';function load_more_posts($post_id = null, $tag_id = null){ $posts = array(); $query = "SELECT `posts`.`post_id` AS `posts_id`, `tags`.`tag_id` AS `tags_id`, `title`, `txt_content`, `img_content`, `date_posted`,`tag_name` FROM `posts` INNER JOIN `tags` ON `tags`.`tag_id` = `posts`.`tag_id`"; if(isset($post_id)){ $post_id = (int)$_POST['post_id']; $query .= " WHERE `posts`.`post_id` < $post_id"; } if(isset($tag_id)){ $tag_id = (int)$tag_id; $query .= " WHERE `tags`.`tag_id` = $tag_id"; } $query .= " ORDER BY `posts`.`post_id` DESC LIMIT 0,1"; $query = mysql_query($query); while($row = mysql_fetch_assoc($query)){ $posts[] = $row; } return $posts;}$posts = (isset($_POST['post_id'])) ? load_more_posts($_POST['post_id']) : load_more_posts();?><!DOCTYPE html><html><head></head><body><?phpforeach($posts as $post){?> <h2><a hrefhttp://stackoverflow.com/questions/15457514/= "http://localhost/simpleblog/looks/<?php echo $post['posts_id']; ?>-<?php $strings = array(" "); echo str_replace($strings, '-', preg_replace('/[^a-zA-Z0-9 s]/', '', $post['title'])); ?>"><?php echo $post['title'];?></a></h2> <div><?php echo nl2br($post['txt_content']);?></div> <div><img src = "http://localhost/simpleblog/<?php echo $post['img_content'];?>"></div> <p>Posted on <i><?php echo date("F dS\,\ Y", strtotime($post['date_posted'])); ?></i> in <a hrefhttp://stackoverflow.com/questions/15457514/= "http://localhost/simpleblog/tags/<?php echo $post['tags_id'];?>"><?php echo $post['tag_name']; ?></a></p> <div><a hrefhttp://stackoverflow.com/questions/15457514/= "http://localhost/simpleblog/edit_my_looks/<?php echo $post['posts_id'];?>">Edit This Post</a> | <a hrefhttp://stackoverflow.com/questions/15457514/= "http://localhost/simpleblog/delte_my_post/<?php echo $post['posts_id'];?>"> Delete This Post</a></div><?php}?></body></html>\[/code\]