Cookie

//  < js Cookies >
function setCookie(cname, cvalue, exdays) {
  var d = new Date();
  d.setTime(d.getTime() + (exdays*24*60*60*1000));
  var expires = "expires="+ d.toUTCString();
  document.cookie = cname + "=" + cvalue + ";" + expires + ";path=/";
}
function getCookie(cname) {
  var name = cname + "=";
  var decodedCookie = decodeURIComponent(document.cookie);
  var ca = decodedCookie.split(';');
  for(var i = 0; i <ca.length; i++) {
    var c = ca[i];
    while (c.charAt(0) == ' ') {
      c = c.substring(1);
    }
    if (c.indexOf(name) == 0) {
      return c.substring(name.length, c.length);
    }
  }
  return "";
}

(function(){
  function run_cookie_modal_check(theCookieName) {
    var cookieVal = getCookie(theCookieName);
    if (cookieVal === "") {
      setCookie(theCookieName, 1, 7);
      setTimeout(function(){
        $('.modal-window').fadeIn();
      },2000);
    }
  }
  run_cookie_modal_check('visited');
})();
//  </ js Cookies >