To show current Data and Time is a most popular design tool. I use own simpliest ones.
Backgroundscroller scrolls background text; very nice trick.
Background Color Wizard helps to check on compatibility of background and text colors, try bgwizard.
Moving Dropdown Menu helps to create Jump-forms in your site without CGI, try DropDown Menu.
Back and Forward Buttons help you reload pages.
Random phrase or image can be inserted in any place where you want. You add your phrases and images (banners, for example).
Visible - Unvisible text or image - try and see.
Countdown in status string is used often in any online tests, games...
Watermark is used as shopping cart in online stores (of course, object is not picture).
World Time Ticker in the Titlebar is an interesting and effect idea.
ScrollUp Text 1 and ScrollUp Text 2 are good for short headlines of the news.
5-function calculator (add, substract, multiply, divide, power) is useful if you need to have calculations on site.
Interactive course of JS you can take in IT Knowledge.com.
up your Web pages, but they are processed on the server. Server-side
this processing for display on the readerís browser. In other words, your
Web pagesí responses to actions performed and information provided by
their readers take place on the server as opposed to the readerís
same Web page.
Server-side processing allows users to respond in ways not possible using
can read from and write to files as well as accessing databases. Your Web
pages can give their readers access to information stored on such files
and databases, or they can respond to readers using information stored on
the server from previous visits. Information can be shared among visitors
to your Web page and between different Web pages.