This article describes and demonstrates techniques only applicable to Internet Explorer. Your browser (Unknown) may not display some parts of this article as Internet Explorer does.
Amazing DHTML - But is it Useful?
Dynamic HTML is not another HTML standard, but is a term used to
describe techniques by which Web pages can be made dynamic using
(DOM). It works on the more recent versions of Internet Explorer and
intelligence into a downloaded Web page. It runs (or 'executes') on the
Web browser (or 'client'), and is technically known as 'client-side
scripting'. It is most commonly used for validating form entries, such as
displaying a message box to indicate that the postcode entered cannot
contain alphabetical characters. (See a
simulation of a validation result.) Cascading Style Sheets allow formatting to be partially
separated from content. In typical use, a Web page contains a link to an
external CSS file, which details how the various tags in the page should
be displayed in the browser.
The DOM is not so familiar. In essence, it is a concept built into the
Web browser where page elements are made accessible by scripting
languages. For example, if a paragraph is given a name (or ID attribute),
that "object" on the page can be addressed by script. It can
therefore be made to change colour, change position, change content,
disappear, change size, etc.
For example, you choose to use DHTML to allow different currency
used DHTML to replace the contents of the link with a second currency, as
in this example: USD 1,000.
There are numerous effects that can be devised using DHTML. Probably
the most useful is to sort the contents of a table by different columns.
(Test the example at the top right of this page by clicking on the column
headings.) Probably the most useless is the cursor clock example on this
page, that you can hardly have failed to notice.
Useless it may well be, but it is certainly a spectacular example of the
possibilities of DHTML!