window.onload = function() {
  if (!document.getElementsByTagName) {
    return false; 
  } 

  var popuplinks = document.getElementsByTagName("a");
  for (var i=0; i < popuplinks.length; i++) {  
    if (popuplinks[i].getAttribute("rel") == "player") {     
      popuplinks[i].onclick = function() {  
      openPopUp(this.getAttribute("href"), this.getAttribute("title"));  
      return false;   
      }   
    }
  } 
}

function openPopUp(url, title)
{
  window.open(url,title,'width=600,height=440')
}