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10. Page Navigation Techniques > 10.0. Introduction

Introduction

No web page is (or should be) an island. Just as there is a way to reach the page, so should there be one or more ways to navigate to other destinations, either within the same site or outside. The HTML hyperlink element—embedded in pages as the rather nondescript <a> tag—is the conventional, nonscripted way to provide a clickable avenue for the user to navigate to another page. But more sophisticated user interface designs frequently require Dynamic HTML to assist with the presentation of navigation options and the very act of navigating.

The location Object

Each window (and frame) object in every scriptable browser has a location object whose properties contain information about the URL of the page currently loaded into the browser. This is an abstract object, meaning that the object has no particular physical presence visible on the page—except perhaps the URL that appears in the browser’s Location or Address field. But the


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