function ivwTag (suffix) {
   var server = 'http://orf.oewabox.at/cgi-bin/ivw/CP/';
   var OEWA=server+suffix;
   var pos = document.location.href.indexOf("-");
   if (pos > -1) {
      var idstrg = document.location.href.substring (pos+1);
      var storytype = document.location.href;
      storytype = storytype.substring (storytype.length - 14);
      pos = idstrg.indexOf("/");
      idstrg = idstrg.substring (0,pos);
      OEWA+=idstrg;
      if (storytype == 'txt_story.html') OEWA+='/sub';
   } else {
      OEWA+='unspecified';
   }
   var ref = escape(document.referrer);
   if (ref.length > 1) {
      OEWA+='?r=' + ref;
   }
   document.write ("<img src=\""+OEWA+"\" height=1 width=1 border=0>");
}