function setLinks() 
{
  if( !document.getElementsByTagName ) return false;
  
  var links = document.getElementsByTagName("a");
  if( links.length == 0 ) return false;

  for( var i = 0; i < links.length; i++ ) 
  {
    var relation = links[i].getAttribute("rel");
    if (relation == "blank") 
      links[i].onclick = function() { return !window.open(this.href); }
  }
}

window.onload = function() {
	setLinks();
}