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Activators and Data Drop Sites
Introduction
This chapter explains the concepts of Activators and Data Drop Sites. These are two of the main operational principles behind Sapphire/Web. When you have finished this chapter, refer to the chapter on HTML Extensions for further reading on the same subject.
Activators are portions of HTML that tell the browser to present a specially sensitive area of screen. They are normally strings of text, but they can also be buttons, pictures, frames, or even the whole page. They can be static jumps, always going to the same place, or dynamic ones, connecting to a program that then generates the next page depending, for example, on what it finds in a database.
The definition of an activator of the most simple form is
<A HREF="Action">Activator Text</A>
where the browser presents the Activator Text in some way to stand out from normal text, and, when the user clicks on the text, returns the Action string to the web server. The web server takes some action depending on the content of Action.
A Data Drop Site is a special string embedded within an HTML template document. It is recognized by the program you create using Sapphire/Web and is replaced with data that the program obtains. The composite is then sent to your browser for display. A typical Sapphire/Web data site is:
##Sa_ExampleDataSite##
which is replaced by data at runtime.
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