var downloadExtension = new Array(
   'doc','docx','pdf','xls','ppt','zip','gz','bz2','rar','txt','vsd','vxd',
   'js','css','exe','wma','mov','avi','wmv','mp3','mp4');
var trackDownloadsAsEvent = true;
var trackExtlinksAsEvent = true;
var downloadCat = 'Downloads';
var extLinksCat = 'Externe Links';
var intDomain = window.location.hostname; 
if(window.addEventListener){document.addEventListener('click', clickHandler,
   false);}
else {document.attachEvent('onclick', clickHandler);}
function clickHandler(e){
   if (window.event) e = window.event; 
   var srcEl = e.srcElement? e.srcElement : e.target;
   var targetUrl = srcEl.getAttribute('href');
   if (targetUrl && targetUrl.length > 0) {
      var re = new RegExp('^(?:f|ht)tp(?:s)?\://([^/]+)', 'im');
      var tarDomain = (targetUrl.match(re)? targetUrl.match(re)[1].toString() :
         (targetUrl.indexOf(':') < 0 ? intDomain : null));
      if (tarDomain != null) {
         var a = document.createElement('a');
         a.href = targetUrl;
         var filePath = a.pathname;
         var fileName = filePath.split('/').pop();
         var fileExt = fileName.substring(fileName.indexOf('.')+1);
         if (intDomain == tarDomain) {
            for (i=0; i<downloadExtension.length; i++) {
               if (fileExt == downloadExtension[i]) {
                  if (trackDownloadsAsEvent) _gaq.push(['_trackEvent', 
                     downloadCat,'Click',filePath]);
                  else _gaq.push(['_trackPageview',filePath]);
               }
            }
         }        
         else {
            if (trackExtlinksAsEvent) _gaq.push(['_trackEvent', extLinksCat,
               'Click',tarDomain]);
            else _gaq.push(['_trackPageview', '/' + extLinksCat + '/' + 
               tarDomain]);
         }
      }
   }
}