$(document).ready(function() {
  
  $('#buttons a:nth-child(1)').hover(function() {
    $('img', this).attr('src','/media/layout/frontpage_button_1_active.jpg')
  }, function() {
    $('img', this).attr('src','/media/layout/frontpage_button_1.jpg')
  });

  $('#buttons a:nth-child(2)').hover(function() {
    $('img', this).attr('src','/media/layout/frontpage_button_2_active.jpg')
  }, function() {
    $('img', this).attr('src','/media/layout/frontpage_button_2.jpg')
  });

  $('#buttons a:nth-child(3)').hover(function() {
    $('img', this).attr('src','/media/layout/frontpage_button_3_active.jpg')
  }, function() {
    $('img', this).attr('src','/media/layout/frontpage_button_3.jpg')
  });
  

});