function highlightCurrentPageLink() {
  var aRefs = document.getElementsByTagName("a");
  for (var i = 0; i < aRefs.length; i++) {
	if(window.location.href.indexOf(aRefs[i].href) != -1) {
     var currentClassName = aRefs[i].className;
     var newClassName = currentClassName.replace(/inaktiv/,"aktiv");
     aRefs[i].className = newClassName;
    }
  }
}
highlightCurrentPageLink();