HTML and CSS Reference
HTML, but it can contain HTML content within its statements. All of this will become
clear as we proceed.
of writing to cookies (see Chapter 16, “Cookies”). It does not let you write to or store
files on the server. It does not open or close windows already opened by other applica-
tions and it cannot read from an opened Web page that came from another server.
the traditional mechanism for inheritance and classes found in object-oriented program-
ming languages, such as Java and C++. The terms private, protected, and public do not
soft's Internet Explorer.
mouse going over a link or graphic. They can improve a Web site with navigational
aids, scrolling messages and rollovers, dialog boxes, dynamic images, and so forth.
Without any network transmission, it lets you validate what the user has entered into
a form before submitting the form to the server. It can test to see if the user has plug-
ins and send the user to another site to get the plug-ins if needed. It has string func-
tions and supports regular expressions to check for valid e-mail addresses, Social
language. Its core language describes such basic constructs as variables and data types,
control loops, if/else statements, switch statements, functions, and objects. 4 It is used
for arithmetic calculations, manipulates the date and time, and works with arrays,
strings, and objects. It handles user-initiated events, sets timers, and changes content
creates HTML based on the cookie value.