function __unescapeXML__(str) {
    str = str.replace(unescAmpRegEx, "&").
            replace(unescLtRegEx, "<").
            replace(unescGtRegEx, ">").
            replace(unquotRegEx, "\"").
            replace(unaposRegEx, "'");

    return str;
}
function __unescapeXML__
@param  str : string - The string to be unescaped
@return : string - The unescaped string