var onChange = function (event){ 
if (!event.isLocal) { 
if (event.type === "text_inserted") { 
var insert_point = event.index; 
insert_text(insert_point, event.text); 
} 
 else if (event.type === "text_deleted") { 
var back_point = event.index; 
var front_point = event.index + _AN_Read_length("length", event.text); 
delete_text(back_point, front_point); 
} 
} 
} 
; 
var newChat = function (event){ 
var array = chats.asArray(); 
var last_index = _AN_Read_length("length", array) - 1; 
if (event.isLocal) { 
insertChat(array[last_index][0], array[last_index][1], true , your_photo); 
} 
 else { 
insertChat(array[last_index][0], array[last_index][1], false , array[last_index][3]); 
} 
} 
; 
var titleChange = function (event){ 
if (!event.isLocal) { 
sendTitle(title.getText()); 
} 
} 
; 
var userLeft = function (doc){ 
if (!doc.collaborator.isMe) { 
var the_id = doc.collaborator.sessionId; 
removeUser(the_id); 
} 
} 
; 
var userJoin = function (doc){ 
if (!doc.collaborator.isMe) { 
var col = doc.collaborator; 
insertUser(col.displayName, col.color, col.photoUrl, col.sessionId, col); 
} 
} 
; 
function loaded_realtime(doc){ 
doc_real = doc; 
if ((!init_needed || (init_needed && init_loaded)) && typeof doc !== 'undefined') { 
setValue(doc_real.getModel().getRoot().get("text").getText()); 
text = doc.getModel().getRoot().get("text"); 
text.addEventListener(gapi.drive.realtime.EventType.TEXT_INSERTED, onChange); 
text.addEventListener(gapi.drive.realtime.EventType.TEXT_DELETED, onChange); 
chats = doc.getModel().getRoot().get("chat"); 
chats.addEventListener(gapi.drive.realtime.EventType.VALUES_ADDED, newChat); 
doc.addEventListener(gapi.drive.realtime.EventType.COLLABORATOR_LEFT, userLeft); 
doc.addEventListener(gapi.drive.realtime.EventType.COLLABORATOR_JOINED, userJoin); 
var col = doc_real.getCollaborators(); 
for (var i = 0; 
i < _AN_Read_length("length", col); i++ ){ 
if (col[i].isMe) { 
your_session_id = col[i].sessionId; 
your_color = col[i].color; 
your_user_id = col[i].userId; 
your_name = col[i].displayName; 
your_photo = col[i].photoUrl; 
sendData({ 
type: "info_realtime",
session: your_session_id,
color: your_color,
id: your_user_id,
name: your_name,
photo: your_photo}
); 
} 
 else { 
insertUser(col[i].displayName, col[i].color, col[i].photoUrl, col[i].sessionId, col[i]); 
} 
} 
var chats_so_far = chats.asArray(); 
for (var a = 0; 
a < _AN_Read_length("length", chats_so_far); a++ ){ 
if (chats_so_far[a][2] === your_user_id) { 
insertChat(chats_so_far[a][0], chats_so_far[a][1], true , chats_so_far[a][3]); 
} 
 else { 
insertChat(chats_so_far[a][0], chats_so_far[a][1], false , chats_so_far[a][3]); 
} 
} 
loaded_title(doc); 
} 
} 
function loaded_title(doc){ 
if (typeof doc !== 'undefined') { 
if (!init_needed || (init_needed && title_loaded)) { 
title = doc.getModel().getRoot().get("title"); 
try { 
title.addEventListener(gapi.drive.realtime.EventType.TEXT_INSERTED, titleChange); 
} 
catch (e) { 
init_realtime(doc_real.getModel()); 
} 
try { 
sendTitle(title.getText()); 
} 
catch (e) { 
} 
} 
} 
} 
function makeChat(m){ 
var message = m.split(">").join("").split("<").join("").split(";").join(""); 
var make = [message, your_name, your_user_id, your_photo] ; 
chats.push(make); 
} 
function makeChat(message, name, id, photo){ 
var m = message.split(">").join("").split("<").join("").split(";").join(""); 
var make = [m, name, id, photo] ; 
chats.push(make); 
}