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/*
Examples From
JavaScript: The Definitive Guide, Fourth Edition
Legal matters: these files were created by David Flanagan, and are
Copyright (c) 2001 by David Flanagan. You may use, study, modify, and
distribute them for any purpose. Please note that these examples are
provided "as-is" and come with no warranty of any kind.
David Flanagan
*/
/*
* FILE: listanchors.js
* The function listanchors() is passed a document as its argument and
* opens a new window to serve as a "navigation window" for that
* document. The new window displays a list of all anchors in the document.
* Clicking on any anchor in the list causes the document to scroll to
* the position of that anchor. A document should not call this
* function on itself until it is fully parsed, or at least until all
* the anchors in it are parsed.
*/
function listanchors(d) {
// Open the new window.
var newwin = window.open("", "navwin",
"menubar=yes,scrollbars=yes,resizable=yes," +
"width=600,height=300");
// Give it a title.
newwin.document.writeln("<h1>Navigation Window:<br>" +
document.title + "</h1>");
// List all anchors.
for(var i = 0; i < d.anchors.length; i++) {
// For each anchor object, determine the text to display.
// First, try to get the text between <A> and </A> using a
// browser-dependent property. If none, use the name instead.
var a = d.anchors[i];
var text = null;
if (a.text) text = a.text; // Netscape 4
else if (a.innerText) text = a.innerText; // IE 4+
if ((text == null) || (text == '')) text = a.name; // Default
// Now output that text as a link. Note the use of the location
// property of the original window.
newwin.document.write('<a href="#' + a.name + '"' +
' onclick="opener.location.hash=\'' + a.name +
'\'; return false;">');
newwin.document.write(text);
newwin.document.writeln('</a><br>');
}
newwin.document.close(); // Never forget to close the document!
}
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