Using JavaScript to change the appearance of a graphic when the pointer (cursor) is moved over it. JavaScript rollovers are used to highlight elements in navigation bars and produce other graphics ...

jQuery is an open-sourced JavaScript library that simplifies creation and navigation of web applications. Specifically, jQuery simplifies HTML Document Object Model manipulation, Asynchronous ...

Getting a Count of the Elements in a Listbox in JavaScript. A listbox is a selection element on websites that lets you select from one or multiple items in a scrollable list.