// tags should be a collection of ad ids
addAds = function(tags) {
  var sizeIds = {'ad468x60':1,'ad60x60':59,'ad47x60':201,'ad300x250':170,'ad728x90':225,'ad250x250':165,'ad728x90':225,'ad160x600':154,'ad300x100':457,'ad120x600':168,'ad125x125':6,'ad644x27':1873};
  if (String(window.location).substr(0,5) == 'https') var server = 'https://secserv.adtech.de';
  else var server = 'http://adserver.adtech.de';
  for (var i in tags) {
    if (x = document.getElementById(tags[i])) {
      if (x) {
        var adClass = x.className.split(' ')[0];
        size=adClass.substr(2).split('x');
        adId=x.getAttribute('name');
        var keywords = '';
        var z = document.getElementById('_Adtech_Keywords');
        if (z) {
          keywords = z.value;
          keywords = keywords.replace(/ /g, "+");
        }
        x.innerHTML = '<IFRAME WIDTH="'+size[0]+'" HEIGHT="'+size[1]+'" SCROLLING="No" FRAMEBORDER="0" MARGINHEIGHT="0" MARGINWIDTH="0" SRC="'+server+'/adiframe/3.0/837/'+adId+'/0/'+sizeIds[adClass]+'/ADTECH;target=_blank;key='+keywords+';grp=[group];misc='+Math.random()+'"><script language="javascript" src="'+server+'/addyn/3.0/837/'+adId+'/0/'+sizeIds[adClass]+'/ADTECH;loc=700;target=_blank;key='+keywords+';grp=[group]"></script></IFRAME>';
      }
    }
  }
}