var ProjectJSToolsClass = function() {
    return {
        urldecode: function(str) {
            var hash_map = {}, ret = str.toString(), unicodeStr='', hexEscStr='';

            var replacer = function (search, replace, str) {
                var tmp_arr = [];
                tmp_arr = str.split(search);
                return tmp_arr.join(replace);
            };
            
            hash_map["'"]   = '%27';
            hash_map['(']   = '%28';
            hash_map[')']   = '%29';
            hash_map['*']   = '%2A';
            hash_map['~']   = '%7E';
            hash_map['!']   = '%21';
            hash_map['%20'] = '+';
            hash_map['\u00DC'] = '%DC';
            hash_map['\u00FC'] = '%FC';
            hash_map['\u00C4'] = '%D4';
            hash_map['\u00E4'] = '%E4';
            hash_map['\u00D6'] = '%D6';
            hash_map['\u00F6'] = '%F6';
            hash_map['\u00DF'] = '%DF';
            hash_map['\u20AC'] = '%80';
            hash_map['\u0081'] = '%81';
            hash_map['\u201A'] = '%82';
            hash_map['\u0192'] = '%83';
            hash_map['\u201E'] = '%84';
            hash_map['\u2026'] = '%85';
            hash_map['\u2020'] = '%86';
            hash_map['\u2021'] = '%87';
            hash_map['\u02C6'] = '%88';
            hash_map['\u2030'] = '%89';
            hash_map['\u0160'] = '%8A';
            hash_map['\u2039'] = '%8B';
            hash_map['\u0152'] = '%8C';
            hash_map['\u008D'] = '%8D';
            hash_map['\u017D'] = '%8E';
            hash_map['\u008F'] = '%8F';
            hash_map['\u0090'] = '%90';
            hash_map['\u2018'] = '%91';
            hash_map['\u2019'] = '%92';
            hash_map['\u201C'] = '%93';
            hash_map['\u201D'] = '%94';
            hash_map['\u2022'] = '%95';
            hash_map['\u2013'] = '%96';
            hash_map['\u2014'] = '%97';
            hash_map['\u02DC'] = '%98';
            hash_map['\u2122'] = '%99';
            hash_map['\u0161'] = '%9A';
            hash_map['\u203A'] = '%9B';
            hash_map['\u0153'] = '%9C';
            hash_map['\u009D'] = '%9D';
            hash_map['\u017E'] = '%9E';
            hash_map['\u0178'] = '%9F';

            for (unicodeStr in hash_map) {
                hexEscStr = hash_map[unicodeStr]; // Switch order when decoding
                ret = replacer(hexEscStr, unicodeStr, ret); // Custom replace. No regexing
            }

            // End with decodeURIComponent, which most resembles PHP's encoding functions
            ret = decodeURIComponent(ret);

            return ret;
        }
    }
};
var ProjectJSTools = new ProjectJSToolsClass();