var NOF_ajaxForm = function(){
    var withName = true;

    
    var __getFormElementFalse = function(formName, elementName){
        withName = false;
        return __getFormElement(formName, elementName);
    }
    
    var __getFormElementTrue = function(formName, elementName){
        withName = true;
        return __getFormElement(formName, elementName);
    }
    
    var __getFormElement = function(formName, elementName){
        var result = '';
        var elList = document.getElementsByName(elementName);
        for(var i=0; i<elList.length; i++){
            if(elList[i].form.name == formName){
                var elType = elList[i].type;
                switch(elType){
                    case 'text':
                        result += __getFieldText(elList[i]);
                    break;
                    case 'password':
                        result += __getFieldText(elList[i]);
                    break;
                    case 'textarea':
                        result += __getFieldText(elList[i]);
                    break;
                    case 'hidden':
                        result += __getFieldText(elList[i]);
                    break;
                    case 'radio':
                        result += __getFieldRadio(elList[i]);
                    break;
                    case 'checkbox':
                        result += __getFieldCheckBox(elList[i]);
                    break;
                    case 'select-one':
                        result += __getFieldSelectOne(elList[i]);
                    break;
                    case 'select-multiple':
                        result += __getFieldSelectMultiple(elList[i]);
                    break;
                }
                
            }
        }
        return result;
    }
    
    
    var __getFieldText = function(formElement){
        if(withName){
            return '&' + Url.encode(formElement.name) + '=' + Url.encode(formElement.value);
        }else{
            return Url.encode(formElement.value);
        }
    }
    
    var __getFieldRadio = function(formElement){
        if(formElement.checked){
            if(withName){
                return '&' + Url.encode(formElement.name) + '=' + Url.encode(formElement.value);
            }else{
                return Url.encode(formElement.value);
            }
        }else{
            return '';
        }
    }
    
    var __getFieldCheckBox = function(formElement){
        if(formElement.checked){
            if(withName){
                return '&' + Url.encode(formElement.name) + '=' + Url.encode(formElement.value);
            }else{
                return Url.encode(formElement.value);
            }
        }else{
            return '';
        }
    }
    
    var __getFieldSelectOne = function(formElement){
        if(formElement.selectedIndex > -1){
            if(withName){
                return '&' + Url.encode(formElement.name) + '=' + Url.encode(formElement.options[formElement.selectedIndex].value);
            }else{
                return Url.encode(formElement.options[formElement.selectedIndex].value);
            }
        }else{
            return '';
        }
    }
    
    var __getFieldSelectMultiple = function(formElement){
        var result = '';
        for(var i=0; i<formElement.length; i++){
            if(formElement.options[i].selected){
                if(withName){
                    result += '&' + Url.encode(formElement.name) + '=' + Url.encode(formElement.options[i].value);
                }else{
                    result += ',' + Url.encode(formElement.options[i].value);
                }
            }
        }
        if(result.length > 0 && !withName){
            result = result.substr(1);
        }
        return result;
    }
    
    return{
        getElementValue:__getFormElementFalse,
        getFormValues:__getFormElementTrue
    };
}();



/**
*
*  URL encode / decode
*  http://www.webtoolkit.info/
*
**/
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;
    }

}