function load_in_new(e){

  //IE uses a global object to give access to the current event
  if (e==undefined)
  {
    e=window.event;
  }
  window.open(this.getElementsByTagName('option')[this.selectedIndex].value);
  //alert();
  //alert(this.idselectedItem.value);
}
function $(id)
{
  return document.getElementById(id);
}
$('pdf_loader').onchange = load_in_new;