Support for multilanguage sites, Internationalization (I18N)

[Dimi]

Hello.

I fail to understand one thing with my website and the navigation plugin.
Its a opensource theme i have downloaded and i try to edit the navigation look that is build upon 2 pictures.
( i suppose because it needs to expand. )

The navigation plugin can load one of the picture but it fails to load the second picture.
I will try to explain with code. ( i dont have a online website right now )

So my CSS is as follow.

Code:

/* topmenu */
div#topmenu{
   position:absolute;
   top:46px;
   right:0px;
   height:27px;
}

div#topmenu ul{
   padding:0px;
   margin:0px;
   list-style:none;
   float:left;
   font-family:'Trebuchet MS', Arial, Helvetica, sans-serif;
}

div#topmenu li{
   float:left;
   display:block;
   margin:0 0 0 6px;
}

div#topmenu li a{
   float:left;
   display:block;
   position:relative;
   background:transparent url(../images/menu-r.png) 100% 0 no-repeat;
   height:27px;
   padding:0 5px 0 0;
   overflow:hidden;
   color:#202020;
   text-decoration:none;
   text-transform:uppercase;
   font-size:13px;
   font-weight:bold;
   line-height:27px;
}

div#topmenu li a span{
   display:block;
   background:url(../images/menu-l.png) 0 0 no-repeat;
   padding:0 10px 0 15px;
}

div#topmenu li a.current, div#topmenu li a:hover{
   background:url(../images/menu-r.png) 100% -28px no-repeat;
   text-decoration:none;
}

div#topmenu li a.current span, div#topmenu li a:hover span{
   background:url(../images/menu-l.png) 0 -28px no-repeat;
}

As you can see in the CSS i have under div#topmenu li a{ a picture and this one is loaded.
But there is also a picture under div#topmenu li a span{ this one is not loaded, see picture i attached, the span picture are supposed to span over the text.    
Here is my template for the menu.

PHP Code:

   <!-- topmenu -->
    <div id="topmenu">
      <ul>
    <!--<a href=""><span>Services</span></a>--> // This one works because the <span> is included
        <?php get_i18n_navigation(return_page_slug()); ?>
      </ul>
    </div>
    <!-- / topmenu --> 


What i fail to understand is where do i add <span> to the i18n_navigation


Many thanx for your help and im sorry to ask basic questions, im under a learning process.

/Dimi