//Pop-under only once per browser session? (0=no, 1=yes)
var first_visit_only=1

function check_cookie(Name) {
  var search = Name + "="
  var return_value = "";
  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;
      return_value=unescape(document.cookie.substring(offset, end))
      }
   }
  return return_value;
}

function invornot(){
	if (check_cookie('ssinv')==''){
		loadssinv()
		document.cookie="ssinv=yes"
	}
}

function loadssinv(){
	setTimeout(run_slideshow,5000);
}
if (first_visit_only==0)
loadssinv()
else
invornot()