<!-- Refresh a web page when first loads it using cookies.

// Check the existing URL, if it is the first visit, then returns "true".
function CheckURL (url) {
var cooHere = GetCookie('RefreshPage')
    if (cooHere == null) {
        // No cookies created!
        SetCookie ('RefreshPage', url + "|");
        return true;
    } else {
        if (!CheckExistingURL(url)) {
            // The "url" does not exists in cookies, then add "url" to the cookies
            SetCookie ('RefreshPage', cooHere + url + "|");
            return true;
        }            
            
        return false;
    }
}

function CheckExistingURL(url) {
var coo = GetCookie('RefreshPage');
var arglen = url.length;
var coolen = coo.length;
var i = 0;
    while (i < coolen) {
        var j = i + arglen;
        if (coo.substring(i, j) == url)
            return true;
        i = coo.indexOf("|", i) + 1;
        if (i == 0) break;
    }
return false;
}

function test() {
var cookie = GetCookie('RefreshPage')
if (cookie == null) {
    message = "No cookie found";
    } else {
        message = "Cookie found!<BR>================<BR>Name = RefreshPage<BR>Value = " + cookie + "<BR>Length = " + cookie.length;
        }
return message
}



// !!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!
// Below is the basic function used to create, retrieve, and delete cookies.
// Please don't change the code below, if you are not familarize with JavaScript
// !!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!

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

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 DeleteCookie (name) {
var exp = new Date();
exp.setTime (exp.getTime() - 1);
var cval = GetCookie (name);
document.cookie = name + "=" + cval + "; expires=" + exp.toGMTString();
}
//  End -->

