addLoadEvent(zetKomma)
function addLoadEvent(func) {
  var oldonload = window.onload;
  if (typeof window.onload != 'function') {
    window.onload = func;
  } else {
    window.onload = function() {
      oldonload();
      func();
    }
  }
}

function zetKomma(){
	plek = document.getElementById('extra');
	deLinks = plek.getElementsByTagName('ol');
	deLis = deLinks[0].childNodes;
	for(i=0;i<deLis.length-2;i++){
	//alert('li')
		if(deLis[i].tagName == 'LI'){
			deA = deLis[i].childNodes;
			for(j=0;j<deA.length;j++){
				if(deA[j].tagName == 'A'){
					komma = document.createTextNode(',');
					deA[j].appendChild(komma);
				}
			}
		}
	}
}