function wrapHanja(elemId) {
    var obj = document.getElementById(elemId);
    if(obj) {
        var content = obj.innerHTML;
        var newContent = '';

        var ccode = null;
        for(i = 0; i < content.length; i++) {
            ccode = content.charCodeAt(i);
            //newContent += '(' + ccode + ')';
            if (
                    (0x3400  <= ccode && ccode <= 0x4DBF) ||
                    (0x4E00  <= ccode && ccode <= 0x9FBF) ||
                    (0x20000 <= ccode && ccode <= 0x2A6DF) ||
                    (0x2F800 <= ccode && ccode <= 0x2FA1F) ||
                    (0xF900 <= ccode && ccode <= 0xFAFF) ||
                    (0x9FA6  <= ccode && ccode <= 0x9FBB)
               ) {
                newContent += '<span class="hanja">' + content.charAt(i) + '</span>';
            }
            else {
                newContent += content.charAt(i);
            } 

        }
        obj.innerHTML = newContent;
        return true;
    } else {
        return false;
    }
}