The noscript tag in HTML
Creating prompts for users
Making links smarter "A"
Making links smarter "B"
Switch/case statements
Handling errors
Re-using functions
Basic image rollover
Making rollovers accessible and 508 compliant
Making disjoint rollovrs
Creating slideshows
Displaying random images
Creating jump menus
Creating dynamic menus
Verifying email addresses
Responding to window events
Responding to mouse movements
Responding to mouse clicks
Responding to onBlurr form events
Responding to onFocus form events
Responding to keyboard events
Writing a cookie
Reading a cookie
Displaying a cookie
Counting with cookies
Deleting cookies
Handling multiple cookies
Cookies in action
Deleting nodes from the DOM
Replacing nodes in the DOM
Displaying dates
Displaying times
Creating a countdown
Creating sliding menus
Creating pop-up menus
Creating slideshows with caption
Creating a stylesheet switcher
Fixed layouts] Fluid layouts] Elastic layouts