function base64_encode(decStr) {
  var base64s = 'ABCDEFGHIJKLMNOPQRSTUVWXYZabcdefghijklmnopqrstuvwxyz0123456789+/';
  var bits;
  var dual;
  var i = 0;
  var encOut = '';

  while(decStr.length >= i + 3) {
    bits = (decStr.charCodeAt(i++) & 0xff) <<16 |
           (decStr.charCodeAt(i++) & 0xff) <<8 |
            decStr.charCodeAt(i++) & 0xff;

    encOut += base64s.charAt((bits & 0x00fc0000) >>18) +
              base64s.charAt((bits & 0x0003f000) >>12) +
              base64s.charAt((bits & 0x00000fc0) >> 6) +
              base64s.charAt((bits & 0x0000003f));
  }

  if(decStr.length -i > 0 && decStr.length -i < 3) {
    dual = Boolean(decStr.length -i -1);

    bits = ((decStr.charCodeAt(i++) & 0xff) <<16) |
           (dual ? (decStr.charCodeAt(i) & 0xff) <<8 : 0);

    encOut += base64s.charAt((bits & 0x00fc0000) >>18) +
              base64s.charAt((bits & 0x0003f000) >>12) +
              (dual ? base64s.charAt((bits & 0x00000fc0) >>6) : '=') +
              '=';
  }

  return(encOut);
}

var resolution = window.screen.width + 'x' +
                 window.screen.height + 'x' +
                 window.screen.colorDepth + 'bit';

if((modul=='maxviva')||(modul=='pvg')||(modul=='page_schna')||(modul=='page_well')||(modul=='page_kreuz')||(modul=='page_stadt')||(modul=='page_rundr')||(modul=='page_va')||(modul=='srpv')||(modul=='ehoi')||(modul=='page_sos')){

	document.write(
	  '<img src="http://www.travel-sense.de/counter/image.php?' +
	  'client_id='           	+ client_id + '&' +
	  'document_url='           + base64_encode(document.URL) + '&' +
	  'referer='                + base64_encode(document.referrer) + '&' +
	  'modul='      + modul +
	  '" alt="" width="1" height="1" />'
	);

}