This site provides a large collection of selected DHTML scripts and JavaScripts. Each script is shown with an example and detailed explanation. Easy to copy and use.
A collection of popular JavaScripts created by professional programmers are offered for free at SoftComplex.com With illustrated documentation, demos and tons of other support materials provided even newbie can setup these widgets instantly. Download menus, trees, calendars scrollers and other great scripts today and improve functionality and look of your site.
This site contains a number of javascript calculators for use in fluid mechanics and wave propagation as well as more general fields of engineering and science. The level of knowledge required is such that non-experts as well as specialists can benefit.