// JavaScript Document
function navChange2(popup) {
  if (popup.options[popup.selectedIndex].value != "")
  {
    window.open(popup.options[popup.selectedIndex].value, '_blank');
    popup.selectedIndex=0;
  }
}

function navChange3(popup) {
  if (popup.options[popup.selectedIndex].value != "")
  {
    window.open(popup.options[popup.selectedIndex].value, '_self');
    popup.selectedIndex=0;
  }
}