HTML for PSTN Acronym

when PSTN means Public Switched Telephone Network

New! Now updated with the inheritance rules for the title attribute in HTML 5

The easiest way to create HTML code indicating that the acronym PSTN stands for Public Switched Telephone Network is to simply include the acronym in an HTML <a> tag and an abbreviation tag (not an acronym tag):

<a href="http://www.Acronyms.net/terms/p/Public-Switched-Telephone-Network/" title="Public Switched Telephone Network"
onclick="if (confirm('PSTN stands for Public Switched Telephone Network')) return false;"
>
<abbr>PSTN</abbr>
</a>

This is the recommended code for both HTML 4 browsers and HTML 5 browsers. Some browsers, most notably IE, do not activate help when the title attribute is coded on the <abbr> tag, but they do work as expected for titles on the <a> tag. The <abbr> tag inherits its title attribute from the parent <a> tag.

If you are creating HTML code for the definition of Public Switched Telephone Network, the meaning of the acronym PSTN, then include a <dfn> definition tag around the <abbr> abbreviation tag and follow the entire HTML code for the hypertext link with the definition of the term:

<p>A <a href="http://www.Acronyms.net/terms/p/Public-Switched-Telephone-Network/" title="Public Switched Telephone Network"
onclick="if (confirm('PSTN stands for Public Switched Telephone Network')) return false;"
>
<dfn><abbr title="Public Switched Telephone Network">PSTN</abbr>
</a> is ...(definition of Public Switched Telephone Network)....</p>

The <dfn> tag gets the term being defined from the title attribute of the <abbr> tag. The result should look like this (hovering your mouse over the PSTN acronym shows the expanded meaning of the acronym):

A PSTN is ...(definition of "Public Switched Telephone Network")....

If you are creating HTML code that simply expands the acronym then indicate that it is the PSTN acronymn which is being defined using an HTML <dfn> tag with a title attribute around the <abbr> tag and follow the HTML for the hypertext link with the acronym definition:

<p>When we use the acronym <a href="http://www.Acronyms.net/terms/p/Public-Switched-Telephone-Network/" title="Public Switched Telephone Network"
onclick="if (confirm('PSTN stands for Public Switched Telephone Network')) return false;"
>
<dfn title="PSTN"><abbr title="Public Switched Telephone Network">PSTN</abbr></dfn>
</a> it is the abbreviation for Public Switched Telephone Network.</p>

The result should look like this (hovering your mouse over the PSTN acronym shows the definition):

When we use the acronym PSTN it is the abbreviation for Public Switched Telephone Network.

Acronym Vocabulary URI Declaration

For the remaining examples, the Acronym Vocabulary namespace URI needs to be declared for use with element tag names and attribute values. For an HTML web page, the beginning of the file should look like this:

<?xml version="1.0" encoding="UTF-8"?>
<!DOCTYPE html [
<!ENTITY at "http://Acronyms.net/terms/">
<!ENTITY av "http://Acronyms.net/vocabulary/">
]>
<html xmlns="http://www.w3.org/1999/xhtml" xmlns:av="&av;">
<head>
<style type="text/css">
.hide { display: none }
</style>
...

This only needs to be done once per document file.

XLink simple link

First, declare the vocabulary as shown above. Then, add acronyms as follows:

<a href="http://www.Acronyms.net/terms/p/Public-Switched-Telephone-Network/" title="Public Switched Telephone Network"
xlink:type="simple"
xlink:href="http://www.Acronyms.net/terms/p/Public-Switched-Telephone-Network/"
xlink:arcrole="&av;definedAt"
xlink:role="&av;definition"
xlink:title="Public Switched Telephone Network"
xlink:show="new"
xlink:actuate="onRequest"
>
<abbr
xlink:type="simple"
xlink:href="&at;Public-Switched-Telephone-Network"
xlink:arcrole="&av;standsFor"
xlink:role="&av;term"
xlink:title="PSTN - Public Switched Telephone Network"
xlink:show="new"
xlink:actuate="onRequest"
>PSTN</abbr></dfn>
</a>

XLink extended link

First, declare the vocabulary as shown above. Then, add acronyms as follows:

<a xlink:type="extended" href="http://www.Acronyms.net/terms/p/Public-Switched-Telephone-Network/" title="Public Switched Telephone Network">
<abbr xlink:type="resource" xlink:label="acronym">PSTN</abbr>
<span class="hide" xlink:type="resource" xlink:label="verbal" xlink:title="pronunciation">p s t n</span>
<span class="hide" xlink:type="resource" xlink:label="expand" xlink:title="expansion">Public Switched Telephone Network</span>
<span class="hide" xlink:type="locator" xlink:label="term" xlink:role="&av;term" xlink:href="&at;Public-Switched-Telephone-Network" xlink:title="Public Switched Telephone Network"/>
<span class="hide" xlink:type="locator" xlink:label="definition" xlink:role="&av;definition" xlink:href="http://www.Acronyms.net/terms/p/Public-Switched-Telephone-Network/" xlink:title="Public Switched Telephone Network"/>
<span class="hide" xlink:type="locator" xlink:label="finder" xlink:role="&av;reference" xlink:href="http://www.Acronyms.net/reference/p/PSTN#Public-Switched-Telephone-Network" xlink:title="PSTN - Public Switched Telephone Network"/>
<span class="hide" xlink:type="arc" xlink:from="acronym" xlink:arcrole="&av;pronounceAs" xlink:to="verbal" xlink:actuate="onLoad"/>
<span class="hide" xlink:type="arc" xlink:from="acronym" xlink:arcrole="&av;expandsTo" xlink:to="expand"/>
<span class="hide" xlink:type="arc" xlink:from="acronym" xlink:arcrole="&av;standsFor" xlink:to="term"/>
<span class="hide" xlink:type="arc" xlink:from="term" xlink:arcrole="&av;definedAt" xlink:to="definition" xlink:show="new" xlink:actuate="onRequest"/>
<span class="hide" xlink:type="arc" xlink:from="acronym" xlink:arcrole="&av;foundAt" xlink:to="finder" xlink:show="new" xlink:actuate="onRequest"/>
</a>

embedded RDF metadata

First, declare the vocabulary as shown above. Then, add acronyms as follows:

<a href="http://www.Acronyms.net/terms/p/Public-Switched-Telephone-Network/" title="Public Switched Telephone Network">
<abbr>PSTN</abbr>
</a>

Printer-friendly PDF* format:

Public Switched Telephone Network

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