Simpel cookie - hvordan??

http://www.curiouscat.com/cookies/example.htm

Hej Martin

Her er noget fra min egen homepage. Jeg bruger cookien til at la brugeren selv velge hvad for en bgsound og backround image han ønsker:

function bg(color) {
SetCookie(\'clr\',color);
document.body.background = \"bg\" + color + \".jpg\";
}

function bgs(sound) {
SetCookie(\'trc\',sound);
document.all.track.src = sound + \".mid\";
document.all.track.loop = \'infinite\';
}

function getCookieVal (offset) {
var endstr = document.cookie.indexOf (\";\", offset);
if (endstr == -1)
  endstr = document.cookie.length;
return unescape(document.cookie.substring(offset, endstr));
}

function GetCookie (name) {
var arg = name + \"=\";
var alen = arg.length;
var clen = document.cookie.length;
var i = 0;
while (i < clen) {
var j = i + alen;
if (document.cookie.substring(i, j) == arg)
  return getCookieVal (j);
i = document.cookie.indexOf(\" \", i) + 1;
if (i == 0) break;
}
return null;
}

function SetCookie (name, value) {
var argv = SetCookie.arguments;
var argc = SetCookie.arguments.length;
var expires = (argc > 2) ? argv[2] : null;
var path = (argc > 3) ? argv[3] : null;
var domain = (argc > 4) ? argv[4] : null;
var secure = (argc > 5) ? argv[5] : false;
document.cookie = name + \"=\" + escape (value) +
((expires == null) ? \"\" : (\"; expires=\" + expires.toGMTString())) +
((path == null) ? \"\" : (\"; path=\" + path)) +
((domain == null) ? \"\" : (\"; domain=\" + domain)) +
((secure == true) ? \"; secure\" : \"\"); }

function evalTrack() {
var sound = GetCookie(\'trc\');
if (sound == null) {
  bgs(\'arab\') }
else { bgs(sound) };
}

function evalColor() {
var color = GetCookie(\'clr\');
if (color == null)
  { bg(\'orange\') }
else { bg(color) };
}