Console (Anonymous) Chat with encryption

c.js

/**
 * This script requires jQuery to be included.
 * TODO: Fix non-jQuery or insert jQuery.
 *
 * It also encrypts messages with your key so that only 
 * you and people you shared the key via other medias like
 * Facebook or phone can read the messages.
 */

// Help (:
function h() {
	console.log( "C H A T    H E L P" );
	console.log( "l( <username>, <key> ) --- Login into chat with your own secret key, only people who have this key will receive the messages (and also only ones to read it)" );
	console.log( "m( <message> ) --- Post a message" );
	console.log( "x() --- Log out, exit the chat (NOTE: clears the log)." );
	console.log( "h() — Prints this help menu." );
}

// Login
function l( username, key ) {
	window.__u = name;
	window.__k = key;
	window.__c = setInterval( function() {
		u();
	}, 5000 );
}

// Update
function u() {
	$.ajax( {
		url: ‘/ajax.php’,
		data: {
			t: window.__t;
		},
		type: ‘POST’,
		success: function( response ) {
			r( response );
		},
	} );
}

// Message
function m( text ) {
	$.ajax( {
		url: ‘/ajax.php’,
		data: {
			m: e( text ),
			t: window.__t,
		},
		type: ‘POST’,
		success: function( response ) {
			r( response );
		},
	} );
};

// Encypt
function e( text ) {
	text = window.btoa( window.btoa( window.__k ) + window.btoa( text ) );
	
	return text;
}

// Decrypt
function d( text ) {
	text = window.atob( window.atob( text ).replace( window.btoa( window.__k ), '' ) ) );
	
	return text;
}

// Response
function r( response ) {
	if( ! response.messages.length )
		return;
	
	for( var i in response.messages )
		console.log( response.messages[ i ].username + ‘: ‘ + d( response.messages[ i ].message ) );
	
	window.__t = this.response.time;
};

// Exit
function x() {
	claerInterval( window.__c );
	
	window.__n = null;
	window.__k = null;
	
	console.log( 'You left. Clearing log in 3 seconds...' );
	
	// Clear console log
	setTimeout( function() {
		console.clear();
	}, 3000 );
}

c.php

<?php

/**
 * This script requires a MySQL database connection
 * with the mapped table set properly. See database 
 * table structure.
 */

// Instance a DB connection here
$db = '';

// Unix timestamp it is
$time = intval( $_POST['t'] );

// Do escape the data !!!
$username = $db->escape( $_POST['u'] );

// If there's something to post
if( $_POST['m'] ) {
	$message = $db->escape( $_POST['m'] );

	$db->query( "INSERT INTO c ( user, time, message ) VALUES ( '$user', '$time', '$message' );" );
}

$messages = $db->get_results( "SELECT user, time, message FROM c WHERE time >= '$time';" );
$time = time();

print( json_encode( compact( 'messages', 'time' ) );

c.sql

CREATE TABLE `c` (
  `user` varchar(255) DEFAULT NULL,
  `message` int(255) DEFAULT NULL,
  `time` int(11) DEFAULT NULL
) ENGINE=InnoDB DEFAULT CHARSET=latin1;

hi. a quick question i need answer on. this "Console (Anonymous) Chat with encryption" .. is it a real chatsite for this? and if so.. whats the chatsite name for it?

@Ashtor: Nix, this is just an idea, a concept of using web browser console as encrypted chat :)