function setCookie( cookieName, cookieValue, expires, path, domain, secure ) {
	var date = new Date();
	date.setTime(date.getTime() + (30 * 60 * 1000));
	document.cookie = cookieName + "=" +escape( cookieValue ) + ";expires=" + date;
}

function getCookie(cookieName) {
  var cookieDataBeg, cookieDataEnd;
  cookieDataBeg = document.cookie.indexOf(cookieName + "=");
  if (cookieDataBeg >= 0) {
    cookieDataBeg += cookieName.length + 1;
    cookieDataEnd = document.cookie.indexOf(";",cookieDataBeg);
    if (cookieDataEnd < 0) cookieDataEnd = document.cookie.length;
    return unescape(document.cookie.substring(cookieDataBeg,cookieDataEnd));
  }
  return null;
}

function checkCookie() {
  var cookData = getCookie('popUnderEI');
  if ( cookData == null ) {
    setCookie('popUnderEI','click1');
  }
  if ( cookData == 'click1' ) {
    openSiteUnder();
    setCookie('popUnderEI','true');
  }
}

function openSiteUnder() {
  var siteUnder = window.open('http://www.junkgrid.com/pub/bonus/js/bonus.php','popunder','toolbar=0,location=1,directories=0,status=0,scrollbars=0,resizable=0,copyhistory=0,menuBar=0,width=600,height=300,left=' + (screen.width/2-300) + ',top=' + (screen.height/2-150) + ',screenX=' + (screen.width/2-300) + ',screenY=' + (screen.height/2-150));
  siteUnder.blur();
  window.focus();
}

var b = document.getElementsByTagName("body")[0];
b.onclick = checkCookie;