document.observe('dom:loaded',function(){     
    
    if($('per_arne_box')){
     $('per_arne_box').observe('mouseover', show_me);
     $('per_arne_box').observe('mouseout', hide_me);
    }
    if($('thore_box')){
     $('thore_box').observe('mouseover', show_me2);
     $('thore_box').observe('mouseout', hide_me2);
    } 
    if($('kari-anne_box')){
     $('kari-anne_box').observe('mouseover', show_me3);
     $('kari-anne_box').observe('mouseout', hide_me3);
    } 
    
      
});

function show_me(){
  $('per_arne').show();
}

function hide_me(){
$('per_arne').hide();
}

function show_me2(){
  $('thore').show();
}

function hide_me2(){
$('thore').hide();
}
function show_me3(){
  $('kari-anne').show();
}

function hide_me3(){
$('kari-anne').hide();
}