/**
 * Brownser cookie handler.
 **/
Vn.Cookie =
{
	set: function (key, value, days)
	{
		var strCookie = key + '=' + value + ';';
	
		if (days != undefined)
		{
			var date = new Date ();
			date.setTime (date.getTime () + days * 86400000);
			strCookie += 'expires=' + date.toGMTString ();
		}
	
		document.cookie = strCookie;
	}

	,unset: function (key)
	{
		this.set (key, '', -1);
	}

	,get: function (key)
	{
		var cookie = new String (document.cookie);
		var start = cookie.indexOf (key + '=');
	
		if (start != -1)
		{
			var end;

			start += key.length + 1;
			end = cookie.indexOf (';', start);

			if (end > 0)
				return cookie.substring (start, end);
			else
				return cookie.substring (start);
		}
		
		return null;
	}
	
	,getInt: function (key)
	{
		var value = this.get (key);
		
		if (value != null)
			return parseInt (value);
		
		return null;
	}
	
	,getFloat: function (key)
	{
		var value = Cookie.get (key);
		
		if (value != null)
			return parseFloat (value);
		
		return null;
	}

	,check: function (key)
	{
		return this.get (key) != null;
	}
};