function get_cookie(Name) {
  var search = Name + "="
  var returnvalue = "";
  if (document.cookie.length > 0) {
    offset = document.cookie.indexOf(search)
    if (offset != -1) { // if cookie exists
      offset += search.length
      // set index of beginning of value
      end = document.cookie.indexOf(";", offset);
      // set index of end of cookie value
      if (end == -1)
         end = document.cookie.length;
      returnvalue=unescape(document.cookie.substring(offset, end))
      }
   }
  return returnvalue;
}

//load pop-under only once per session
function loadornot(url){
if (get_cookie('url')==''){
loadpopunder(url)
document.cookie="url=yes"
}
}

// to make pop under not show up, change to: 
//window.open(url, 'NewWin','left=10,top=5000')
//load everytime
function loadpopunder(url){
win2 = window.open(url, 'NewWin', 
"toolbar=yes,location=yes,directories=no,status=yes,menubar=yes,scrollbars=yes,resizable=yes,height=300, width=600, left=210,top=160")
win2.blur()
window.focus()
}