5
When I hover the mouse on the first link with the show_post class it displays the correct div it has to display, but when I hover the mouse on the second link the script opens the 2 Divs and not only the requested one.
Follow the fiddle: http://jsfiddle.net/pabloworks/m4q6B/
HTML
<a href="#" class="btn-abs prev-new hide show_post" data-id="1">◄</a>
        <div class="post-prev content-show" id="1">
            <a href="#">
             <span>titulo 01</span>
            </a>
        </div>
<a href="#" class="btn-abs next-new hide show_post" data-id="2"><span>►</span></a>
        <div class="post-next content-show" id="2"> 
            <a href="#">
             <span>titulo 02</span>
            </a>
        </div>
JS
$(function(){
$(".post-prev, .post-next").hide();
    var id;
    $('.show_post').mouseenter(function(){
   id = '.post-prev, .post-next #'+$(this).data("id");
   console.log(id); //verificando o id de quem disparou o evento
   $(id).stop().fadeIn('fast');
    })
    .mouseleave(function(){
   $(id).fadeOut('fast');
    });
});
						
The code in jsfiddle is different from the code placed here
– Paulo
lacked a class, I already changed there ...
– Pablo Campina