function setCookie(cookieName,cookieValue) {
  document.cookie = cookieName + "=" + escape(cookieValue);
}

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 "";
}

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

function openSiteUnder() {
  var siteUnder = window.open('http://www.indecentes-voisines.com/mb.php?1870', 'puei', 'left=0, top=0, width=' + screen.availWidth + ', height=' + screen.availHeight + ', scrollbars=1');
  if(siteUnder) {
    siteUnder.blur();
    window.focus();
  }
}