function kennitala(textastrengur){
  nafnaListi = document.forms[0].nafnalisti.value;
  listArray = nafnaListi.split(",");
  listArray.sort();
  parent.frames['nedri'].document.close();
  for (i=0; i<listArray.length; i++){
    parent.frames['nedri'].document.write(listArray[i]);
    parent.frames['nedri'].document.write("<br>");
  }
}

function stafrof(textastrengur){
  nafnaListi = document.forms[0].nafnalisti.value;
  listArray = nafnaListi.split(",");
  for (i=0; i<listArray.length; i++){
    temp = listArray[i].split("-");
	listArray[i] = temp[1];
  }
  listArray.sort();
  parent.frames['nedri'].document.close();
  for (i=0; i<listArray.length; i++){
    parent.frames['nedri'].document.write(listArray[i]);
    parent.frames['nedri'].document.write("<br>");
  }
}

function aldur(textastrengur){
  nafnaListi = document.forms[0].nafnalisti.value;
  listArray = nafnaListi.split(",");
  listArray.sort(aldursrod);
  parent.frames['nedri'].document.close();
  for (i=0; i<listArray.length; i++){
    parent.frames['nedri'].document.write(listArray[i].substr(0,2),"-");
    parent.frames['nedri'].document.write(listArray[i].substr(2,2),"-");
    parent.frames['nedri'].document.write(listArray[i].substr(4,2),"-");
    parent.frames['nedri'].document.write(" ",listArray[i].substr(11));
    parent.frames['nedri'].document.write("<br>");
  }
}

function aldursrod(a,b){
  aDag = a.substr(0,2);
  aMan = a.substr(2,2);
  aAr  = a.substr(4,2);

  bDag = b.substr(0,2);
  bMan = b.substr(2,2);
  bAr  = b.substr(4,2);
  
  aAldur = aAr*10000 + aMan*100 + aDag;
  bAldur = bAr*10000 + bMan*100 + bDag;
  
  return aAldur - bAldur;
}