[ksa]

как сделать запоминание браузером, куки?

Вот тебе функции...

function setCookie(name, value, days) {
  if (days) {
  var date = new Date();
  date.setTime(date.getTime() + (days * 24 * 60 * 60 * 1000));
  var expires = "; expires=" + date.toGMTString()
  } else var expires = "";
  document.cookie = name + "=" + value + expires + "; path=/"
}
function getCookie(name) {
  var nameEQ = name + "=";
  var ca = document.cookie.split(';');
  for (var i = 0; i < ca.length; i++) {
  var c = ca[i];
  while (c.charAt(0) == ' ') c = c.substring(1, c.length);
  if (c.indexOf(nameEQ) == 0) return c.substring(nameEQ.length, c.length)
  }
  return null
}
function delCookie(name) {
  setCookie(name, "", -1)
}