function Cookie(document, name, hours, path, domain, secure){
    this.$document = document;
    this.$name = name;
    if (hours)
        this.$expiration = new Date((new Date()).getTime() + hours*3600000);
    else this.$expiration = null;
    if (path) this.$path = path; else this.$path = null;
    if (domain) this.$domain = domain;
    else this.$domain = null;
    if (secure) this.$secure = true;
    else this.$secure = false;
}

function _Cookie_store(){
    var cookieval = '';
    for(var prop in this) {
        if ((prop.charAt(0) == '$') || ((typeof this[prop]) == 'function'))
            continue;
        if (cookieval != '') cookieval += '&';
        cookieval += prop + ':' + this[prop];
    }
    var cookie = this.$name + '=' + cookieval;
    if (this.$expiration)        cookie += '; expires='+this.$expiration.toGMTString();
    if (this.$path) cookie += '; path=' + this.$path;
    if (this.$domain) cookie += '; domain=' + this.$domain;
    if (this.$secure) cookie += '; secure';
    this.$document.cookie = cookie;
}

function _Cookie_load(){
    var allcookies = this.$document.cookie;
    if (allcookies == '') return false;
    var start = allcookies.indexOf(this.$name + '=');
    if (start == -1) return false;
    start += this.$name.length + 1;
    var end = allcookies.indexOf(';', start);
    if (end == -1) end = allcookies.length;
    var cookieval = allcookies.substring(start, end);
    var a = cookieval.split('&');
    for(var i=0; i < a.length; i++)
        a[i] = a[i].split(':');
    for(var i = 0; i < a.length; i++) {
        this[a[i][0]] = a[i][1];
    }
    return true;
}
function _Cookie_remove(){
    var cookie;    cookie = this.$name + '=';
    if (this.$path) cookie += '; path=' + this.$path;
    if (this.$domain) cookie += '; domain=' + this.$domain;
    cookie += '; expires=Fri, 02-Jan-1970 00:00:00 GMT';
    this.$document.cookie = cookie;
}

new Cookie();
Cookie.prototype.store = _Cookie_store;
Cookie.prototype.load = _Cookie_load;
Cookie.prototype.remove = _Cookie_remove;

function odota() {
	setTimeout("history.back();", 5000);
}

function button(f) {
	if (confirm(poista_vahvistus) == true) {
		lista.remove();
		f.form.submit();
	}
}

function add(key) {
	if (lista.i) {
		var j = lista.i.indexOf(key);
		if (j <= -1) lista.i += '.' + key;
		else if (j == 0) lista.i = lista.i.substring(key.length+1);
		else	lista.i = lista.i.substring(0, j-1) + lista.i.substring(j + key.length);
	}	else lista.i = key;
	lista.store();
	return false;
}

poista_vahvistus = "";
var lista = new Cookie(document, 'lista', 720);
lista.load();