function setCookie(name, value, iDay) {
  var oDate = new Date();
  oDate.setDate(oDate.getDate() + iDay);
  document.cookie = name + '=' + value + ';expires=' + oDate;
}

function getCookie(name) {
var arr = document.cookie.split("; ");
for (var i = 0; i < arr.length; i++) {
  var arr2 = arr[i].split("=");
  if (arr2[0] == name) {
    return arr2[1]
  }
}
return ""
}
function removeCookie(name) {
setCookie(name, 1, -1);
};