function preparelinks() {
  if (!document.getElementsByTagName) return false;
  var lnks = document.getElementsByTagName("a");
  for (var i=0; i<lnks.length; i++) {
    if ((lnks[i].className == "newwindow") || (lnks[i].href.indexOf('vannieuwkerk.info') == -1) || (lnks[i].href.indexOf('vannieuwkerk.info/player/') != -1) || (lnks[i].href.indexOf('http://www.vannieuwkerk.info/files/docs') != -1) || (lnks[i].href.indexOf('http://www.vannieuwkerk.info/files/images') != -1))  {
      lnks[i].onclick = function() {
        popUp(this.getAttribute("href"));
        return false;
      }
    }
  }
}
	

	
function popUp(href) {
  if (href.indexOf('/player/') != -1) {
  		window.open(href,'','width=320,height=147');
  }
  else {
  		window.open(href);
  		
  }
  
}

window.onload = preparelinks;