//1) specify URLs to randomly select from and pop-under:
//To display a single URL, just remove all but the first entry below:
var popunder=new Array()
popunder[0]="http://www.root-top.com/topsite/womenartist/in.php?ID=239"
popunder[1]="http://www.topfigure.bigtopsites.com/in.php?id=hotart"
popunder[2]="http://www.root-top.com/topsite/paintings/in.php?ID=934"
popunder[3]="http://www.root-top.com/topsite/womenartist/in.php?ID=279"
popunder[4]="http://www.root-top.com/topsite/arturkgallery/in.php?ID=390"
popunder[5]="http://www.root-top.com/topsite/evertrobles/in.php?ID=308"

//2) specify popunder window features
//set 1 to enable a particular feature, 0 to disable
var winfeatures="width=800,height=510,scrollbars=1,resizable=1,toolbar=1,location=1,menubar=1,status=1,directories=0"

//3) Control frequency of the pop up:
//"always", for every time page loads OR
//"x hours" for once per x hours, where x is an integer (ie: 12 hours)

var popfrequency="1 hours"

///No editing beyond here required/////

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;
}

function resetcookie(){
var expireDate = new Date()
expireDate.setHours(expireDate.getHours()-10)
document.cookie = "tcpopunder=;path=/;expires=" + expireDate.toGMTString()
}

function loadornot(){
if (get_cookie('tcpopunder')==''){
loadpopunder()
var expireDate = new Date()
expireDate.setHours(expireDate.getHours()+parseInt(popfrequency))
document.cookie = "tcpopunder="+parseInt(popfrequency)+";path=/;expires=" + expireDate.toGMTString()
}
}

function loadpopunder(){
win2=window.open(popunder[Math.floor(Math.random()*(popunder.length))],"",winfeatures)
win2.blur()
window.focus()
}

if (popfrequency=="always"){
resetcookie()
loadpopunder()
}
else{
if (get_cookie('tcpopunder')!=parseInt(popfrequency))
resetcookie()
loadornot()
}