HTML
Images
Tables
Backgrounds
Titles
Forms
inputs, passwords, textareas, radio buttons, checkboxes, etc.
Image maps
CSS
Selectors
Properties
Separete CSS file
Javascript
GetElementById
reading and setting imput fields
setting div and span with innerHTML
events
onclick, onsubmit, onkeyup, etc.
AJAX
sending request
reading answer
Cookies
Duration
Where are they set
Who can retrieve them
SQL
SQL types
int, float
time types
money types
char and varchar
creating a table
Inserting into a table
selecting from a table
deleting from a table
Reasonable database schemes
indexes
PHP
Variables and arrays
Functions
Objects
Entering and leaving PHP mode
connecting to mysql from php
associative arrays
file access
regular expressions