$(document).ready(function() {
    $('#mapa a.point').mouseover(function() {
        var point = this;
        var rel = $(this).attr("rel");
        $('p.box').remove();
        
        $.ajax({
            type: "POST",
            url: '../_popup-mapa.php',
            data: 'id='+rel,
            dataType: "html",
            success: function(data) {      
                $('p.box').remove();
                $(point).append('<p class="box">'+data+'</p>');
            }
        });
        
    }).mouseout(function() {
        $(this).find('p.box').remove();   
    });
    
    $('p.box').mouseover(function() {
      $('p.box').remove();
    });
});