$('ul#referenties > li').mouseover(function() { 
    var slide = (this.id.substring(10))-1;
    $('#ref_pic').cycle(slide); 
    $('ul#referenties > li').removeClass();
    $(this).addClass('selected');
    $('#ref_pic').cycle('pause'); 
    return false; 
}); 
$('ul#referenties > li').mouseout(function() { 
    $('#ref_pic').cycle('resume'); 
});
$('ul#referenties > li').click(function() {
    var href = $('a', this).attr('href');
   window.location = href;  
});