//==================================================================================================================




// COOKIE VERWALTUNG
//==================================================================================================================

function Cookiemanager( name, defaultExpiration, expirationUnits, defaultDomain, defaultPath) {

	this.w3c = (document.getElementById);
	this.ms = (document.all);
	this.userAgent = navigator.userAgent.toLowerCase();
	this.isMacIE = ((this.userAgent.indexOf('msie') != -1) && (this.userAgent.indexOf('mac') != -1) && (this.userAgent.indexOf('opera') == -1));
	this.isOldOp = ((this.userAgent.indexOf('opera') != -1)&&(parseFloat(this.userAgent.substr(this.userAgent.indexOf('opera')+5)) <= 7));

	this.name = name;
	this.defaultExpiration = this.getExpiration( defaultExpiration, expirationUnits);
	this.defaultDomain = (defaultDomain) ? defaultDomain: (document.domain.search(/[a-zA-Z]/) == -1) ? document.domain : document.domain.substring(document.domain.indexOf('.') + 1,document.domain.length);
	this.defaultPath = (defaultPath) ? defaultPath : '/';
	this.cookies = new Object();
	this.expiration = new Object();
	this.domain = new Object();
	this.path = new Object();



	this.getDocumentCookies();
}

//==================================================================================================================
Cookiemanager.prototype.getExpiration = function( expiration,units) {

	expiration = (expiration) ? expiration : 7;
	units = (units) ? units : 'days';
	var date = new Date();
	
	switch(units) {
		
		case 'years':
		date.setFullYear(date.getFullYear() + expiration);
		break;
		case 'months':
		date.setMonth(date.getMonth() + expiration);
		break;
		case 'days':
		date.setTime(date.getTime()+(expiration*24*60*60*1000));
		break;
		case 'hours':
		date.setTime(date.getTime()+(expiration*60*60*1000));
		break;
		case 'minutes':
		date.setTime(date.getTime()+(expiration*60*1000));
		break;
		case 'seconds':
		date.setTime(date.getTime()+(expiration*1000));
		break;
		default:
		date.setTime(date.getTime()+expiration);
		break;
	}

	return date.toGMTString();
}

//==================================================================================================================
Cookiemanager.prototype.getDocumentCookies = function() {

	var cookie,pair;
	var cookies = document.cookie.split(';');
	var len = cookies.length;
	
	for( var i=0; i < len; i++) {
	
		cookie = cookies[i];
		while (cookie.charAt(0)==' ') cookie = cookie.substring(1,cookie.length);
		pair = cookie.split('=');
		this.cookies[pair[0]] = pair[1];
	}
}

//==================================================================================================================
Cookiemanager.prototype.setDocumentCookies = function() {
	
	var expires = '';
	var cookies = '';
	var domain = '';
	var path = '';
	
	for( var name in this.cookies) {
	
		expires = ( this.expiration[name]) ? this.expiration[name] : this.defaultExpiration;
		path = ( this.path[name]) ? this.path[name] : this.defaultPath;
		domain = ( this.domain[name]) ? this.domain[name] : this.defaultDomain;
		cookies = name + '=' + this.cookies[name] + '; expires=' + expires + '; path=' + path + '; domain=' + domain;
		document.cookie = cookies;
	}

	return true;
}

//==================================================================================================================
Cookiemanager.prototype.getCookie = function( cookieName) {

	var cookie = this.cookies[cookieName]
	return (cookie) ? cookie : false;
}

//==================================================================================================================
Cookiemanager.prototype.setCookie = function( cookieName, cookieValue, expiration, expirationUnits, domain, path) {
	
	this.cookies[cookieName] = cookieValue;
	if (expiration) this.expiration[cookieName] = this.getExpiration( expiration, expirationUnits);
	if (domain) this.domain[cookieName] = domain;
	if (path) this.path[cookieName] = path;
	this.setDocumentCookies();
	return true;
}

//==================================================================================================================

var cookieManager = new Cookiemanager( 'dynamicSize', 1, 'years');