irt.org  Very good website with lot's of answers to questions

Davesite   LINK

Milonica Dynamic popup menus (used by freebiblesoftware.com) LINK   around $50

 

Free JavaScripts

• JavaScript Kit :: Free JavaScripts
• JavaScript.com :: Tutorials and Free Java Scripts
• JavaScript Planet :: Free Scripts
• CodeLifter :: Free Cut-and-Paste JavaScript
• JavaScript Source :: JavaScripts