PHP+ AJAX+ MYSQL developed WEB IM interface very good, can be used to study under.

admin.php
ajax_im.php
buddyicons
..........\index.html
config-sample.php
CONTRIB
index.html
INSTALL
install.php
is_online
.........\images
.........\......\away.gif
.........\......\offline.gif
.........\......\online.gif
.........\is_online.php
.........\README
js
..\admin.js
..\ajax_im.js
..\config.js
..\effects.js
..\im.basic.js
..\popup.js
..\prototype.js
..\sm2.js
..\utils.js
..\window.js
json.php
languages
.........\english
.........\.......\lang.js
.........\.......\lingo.js
LICENSE
php.ini.sample
popup.html
README
soundmanager2.swf
sounds
......\msg_in.mp3
......\msg_out.mp3
test-uploads.php
themes
......\dark
......\....\alert
......\....\.....\bottom-left-c.gif
......\....\.....\bottom-middle.gif
......\....\.....\bottom-right-c.gif
......\....\.....\button-close-focus.gif
......\....\.....\button-max-focus.gif
......\....\.....\button-min-focus.gif
......\....\.....\frame-left.gif
......\....\.....\frame-right.gif
......\....\.....\left-top.gif
......\....\.....\right-top.gif
......\....\.....\top-middle.gif
......\....\away.png
......\....\blocked.png
......\....\emoticons
......\....\.........\00.png
......\....\.........\09 - ooh.png
......\....\.........\11 - crazy.png
......\....\.........\13 - geek.png
......\....\.........\14 - devil.png
......\....\.........\15 - doh.png
......\....\.........\16 - XD.png
......\....\.........\18 - brb.png
......\....\.........\angry.png
......\....\.........\cool.png
......\....\.........\cry.png
......\....\.........\embarassed.png
......\....\.........\emoticons.html
......\....\.........\emoticons.js
......\....\.........\Emoticons.txt
......\....\.........\grin.png
......\....\.........\heart.png
......\....\.........\mini_smile.gif
......\....\.........\sad.png
......\....\.........\serious.png
......\....\.........\silly.png
......\....\.........\smile.png
......\....\.........\tongue.png
......\....\.........\wink.png

......\....\modal
......\....\.....\background.png

......\....\offline.png
......\....\online.png
......\....\style.css
......\....\window
......\....\......\addbuddy.png
......\....\......\addbuddy_down.png
......\....\......\addbuddy_hover.png
......\....\......\admin.png

......\....\......\arrow_up.png
......\....\......\audio_off.png
......\....\......\audio_on.png
......\....\......\block.png
......\....\......\block_down.png

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