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Hypertext essentially consists of a network of nodes and links. Nodes are the containers of specific information--they are the individual pages. Links are the dynamic elements within the nodes--when pointed on with the mouse and clicked upon, they inform the browser interface of the next node to be loaded.

According to Joseph Janangelo, aside from the primary functions of nodes and links, hypertext links are "highlighted in color or underlined or both" and, of course, hypertext is a product of an electronic, computer driven mediumJanangelo 25
Most definitions and descriptions of hypertext are similar to this one. I would challenge Janangelo's requirement for links being underlined or highlighted as defining--since, as I discuss in this hypertext, links can come in many different forms. The more acceptable definition, I would contend, comes from my own identification of three functions links possess. Defining links functionally rather than by labelling them "underlined" and "highlighted" enables a clearer conception of the nature of hypertext link.