window.onload = function() {
  if (!document.getElementsByTagName) return false;
  var elem = document.getElementById("newsletterlist");
  var lnks = elem.getElementsByTagName("a");
  for (var i=0; i<lnks.length; i++) { 
	  lnks[i].onclick = function() {
		popUp(this.getAttribute("href"));
		return false;
	 }    
  }
}

function popUp(winURL) {
  window.open(winURL,"popup");
}