Kontrola cookie

<script type="text/javascript">
datum.setTime(datum.getTime()+60*60*24);
var platnost = datum.toGMTString();
var nazevCookie = "cookie_video";
var obsahCookie = "videl";
var meCookie = nazevCookie + "=" + obsahCookie + ";expires=" + platnost;
document.cookie = meCookie;

</script>

<script type="text/javascript">
var cookie = getCookie("meCookie");
function video_on() {
if(cookie == "") {
document.getElementById("video").style.display="block";
document.getElementById("front").style.opacity="0.80";
document.getElementById("front").style.filter="alpha(opacity=80)";
document.getElementById("front").style.MozOpacity="0.80";
document.getElementById("front").style.KhtmlOpacity="0.80";    
document.getElementById("front").style.background="black";

setTimeout("video_off()",22 * 1000 );    
var x = odpocet();
var odpocet = document.getElementById("odpocet");
}
}
function video_off() {
document.getElementById("video").style.display="none";
document.getElementById("front").style.opacity="1";
document.getElementById("front").style.filter="alpha(opacity=100)";
document.getElementById("front").style.MozOpacity="1";
document.getElementById("front").style.KhtmlOpacity="1";
document.getElementById("front").style.background="none";
}
</script>