<!DOCTYPE HTML PUBLIC "-//W3C//DTD HTML 4.01//EN" "http://www.w3.org/TR/html4/strict.dtd">
<html>
<head>
<title>Reload page, remember with cookie</title>
<meta http-equiv="Content-Type" content="text/html; charset=iso-8859-1">
<script type="text/javascript">
var thecookie = readCookie('doreload');
function isCookie(){
if(thecookie == "60000"){
document.forms[0].reloadme.options[1].selected=true;
}
else if(thecookie == "120000"){
document.forms[0].reloadme.options[2].selected=true;
}
else if(thecookie == "300000"){
document.forms[0].reloadme.options[3].selected=true;
}
else if(thecookie == "600000"){
document.forms[0].reloadme.options[4].selected=true;
}
else if(thecookie == "900000"){
document.forms[0].reloadme.options[5].selected=true;
}
else if(thecookie == "1800000"){
document.forms[0].reloadme.options[6].selected=true;
}
else {
document.forms[0].reloadme.options[0].selected=true;
}
if(thecookie != null){
startIt(thecookie);
}
}
function startIt(thetime){
reloader=setInterval("reloadPage()",thetime);
createCookie('doreload',thetime,9999);
}
function reloadPage(){
window.location=this.location;
}
function createCookie(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 readCookie(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 eraseCookie(name){
createCookie(name,"",-1);
if(thecookie != null){
clearInterval(reloader);
}
alert('The cookie has been cleared and page will stop reloading');
document.forms[0].reloadme.options[0].selected=true;
}
window.onload=isCookie;
</script>
</head>
<body>
<form action="#" method="post">
<div>
The refresh rate will be remembered when the page reloads.
<select name="reloadme" onchange="startIt(this.value)">
<option value="null">Choose a refresh rate</option>
<option value="60000">1 Minute</option>
<option value="120000">2 Minutes</option>
<option value="300000">5 Minutes</option>
<option value="600000">10 Minutes</option>
<option value="900000">15 Minutes</option>
<option value="1800000">30 Minutes</option>
</select>
<input type="button" onclick="eraseCookie('doreload')" value="Stop Reloading">
</div>
</form>
</body>
</html>