var Url = {
    // public method for url encoding
    encode : function (string) {
        return escape(this._utf8_encode(string));
    },
    // public method for url decoding
    decode : function (string) {
        return this._utf8_decode(unescape(string));
    },
    // private method for UTF-8 encoding
    _utf8_encode : function (string) {
        string = string.replace(/\r\n/g,"\n");
        var utftext = "";
        for (var n = 0; n < string.length; n++) {
            var c = string.charCodeAt(n);
            if (c < 128) {
                utftext += String.fromCharCode(c);
            }
            else if((c > 127) && (c < 2048)) {
                utftext += String.fromCharCode((c >> 6) | 192);
                utftext += String.fromCharCode((c & 63) | 128);
            }
            else {
                utftext += String.fromCharCode((c >> 12) | 224);
                utftext += String.fromCharCode(((c >> 6) & 63) | 128);
                utftext += String.fromCharCode((c & 63) | 128);
            }
        }
        return utftext;
    },
    // private method for UTF-8 decoding
    _utf8_decode : function (utftext) {
        var string = "";
        var i = 0;
        var c = c1 = c2 = 0;
        while ( i < utftext.length ) {
            c = utftext.charCodeAt(i);
            if (c < 128) {
                string += String.fromCharCode(c);
                i++;
            }
            else if((c > 191) && (c < 224)) {
                c2 = utftext.charCodeAt(i+1);
                string += String.fromCharCode(((c & 31) << 6) | (c2 & 63));
                i += 2;
            }
            else {
                c2 = utftext.charCodeAt(i+1);
                c3 = utftext.charCodeAt(i+2);
                string += String.fromCharCode(((c & 15) << 12) | ((c2 & 63) << 6) | (c3 & 63));
                i += 3;
            }
        }
        return string;
    }
}

			var addValues = function(images, gal, sel) {
				gallery = document.getElementById(gal);
				for (i = gallery.length-1; i>=0; i--){
					gallery.remove(i);
					}
				images.each(function(image) {
					gallery.options[gallery.length] = new Option(image.text,image.value);
					if(gallery.options[gallery.length-1].value == sel) gallery.options[gallery.length-1].selected = true;
					if(image.text == " -- brak ofert -- ") gallery.disabled = true;
					else gallery.disabled = false;
				});
			};
			
			function req(adres, dest, sel) {
				var request = new Request.JSON({
					url: adres,
					onComplete: function(jsonObj) {
						addValues(jsonObj.wartosci, dest, sel);
						if($(dest).get('disabled') == true) {
							if (dest == 'm_ftyp') $('mSzukajBtn').set('disabled', true);
							if (dest == 'k_ftyp') $('kSzukajBtn').set('disabled', true);
							}
						}
					}).send();
				}
			
//ąśąśąś