window.onload=function(){
  if(document.getElementsByTagName('table').length>0)altTableRows();
  if(document.getElementById('mvppages'))altListRows('mvppages');
  if(document.getElementById('furtherevents'))altListRows('furtherevents');
  if(document.getElementById('scrollnews'))initDOMnews();
  if(document.getElementById('linkprint'))addPrintPageButton();
}
window.onunload=function(){
  if(document.getElementById('scrollnews'))clearInterval(dn_interval);
}
function altTableRows(){
  if (!document.getElementById) return;
  var r=document.getElementsByTagName('tr');
  var l=r.length;
  for (i=0;i<l;i++){if (i%2==1){} else {r[i].className='altrow';}}
}
function altListRows(whichList){
  var listContainer=document.getElementById(whichList);
  var list=listContainer.getElementsByTagName('ul');
  var listElements=list[0].getElementsByTagName('li');
  var l=listElements.length;
  for (i=0;i<l;i++){if (i%2==0){} else {listElements[i].className='altrow';}}
}
function addPrintPageButton(){
  var printButton=document.getElementById('linkprint');
  printButton.onclick=function(){window.print();return false;}
}
function checkFields(whichField,whichPhrase){
  if (!document.getElementById) return;
  if ((document.getElementById(whichField).value==whichPhrase)||(document.getElementById(whichField).value=='')){
    alert('Bitte füllen Sie das aktive Feld aus.');
    document.getElementById(whichField).focus();
    return false;
  }
}