var pageOptions = {
  'pubId' : 'pub-6486941980817876',
  'lines' : '2',
  'fontFamily' : 'verdana',
  'fontSizeTitle' : '16px',
  'colorTitleLink' : '#007BCF',
  'colorText' : '#4c4c42',
  'colorDomainLink' : '#968f8f',
  'titleBold' : true,
  'linkTarget' : '_blank',
  'rolloverAdBackgroundColor' : '#EDF7FF',
  'number' : '5',
  'hl' : 'de'
};

var pageOptionsCategory = {
  'channel' : '9280092617'
};

var pageOptionsSubcategory = {
  'channel' : '0044777463'
};

var pageOptionsDirectory = {
  'channel' : '8612295319'
};

var pageOptionsSearch = {
  'channel' : '1391253423'
};

var adblock1 = {
  'container' : 'adcontainer1'
};

var adblock2 = {
  'container' : 'adcontainer2'
};

/*
 * A/B Test
 */
var random_number = Math.random(); // create random number
var advert_randomness = .5; // 50%
if (random_number < advert_randomness){
  // redefine here the above options for alternative B version of the ads
}