Listing 13.1[em]helptopic.xml

   <?xml version="1.0" ?>
   <?protext objid="I5678" ?>
   <!DOCTYPE helptopic SYSTEM "dtdv.dtd" [
   <!ENTITY doubleclick "<todo>Double-click</todo>">
   ]>
   <helptopic>
   <title keyword="printing,network;printing,shared printer">
	How to use a shared network printer?</title>
   <procedure>
   <step><action>In <icon>Network Neighborhood</icon>,
 	locate and double-click the computer where the printer
 	you want to use is located. </action>
   <tip targetgroup="beginners">To see which computers 
	have shared printers attached, click the <menu>View</menu> menu,
	click <menu>Details</menu>, and look for printer names or descriptions 
	in the Comment column of the Network Neighborhood window.</tip>
   </step>
   <step>
   <action>&doubleclick; the printer icon in the window that appears.</action>
   </step>
   <step>
   <action>
   	To set up the printer, <xref linkend="id45">follow the instructions</xref> 
	on the screen.
   </action></step>
   </procedure>
   <tip>
   	After you have set up a network printer, you can use it as if it were 
	attached to your computer. For related topics, look up &quot;printing&quot; 
	in the Help Index.
   </tip>
   </helptopic>


Listing 13.2[em]helptopic.xml with Processing Instruction Added

  <?xml version="1.0" ?>
  <?xml-stylesheet type="text/css2" href="helptopic.css"?>
  <?protext objid="I5678" ?>
  <!DOCTYPE helptopic SYSTEM "dtdv.dtd" [
  <!ENTITY doubleclick "<todo>Double-click</todo>">
  ]>
  <helptopic>
  …


Listing 13.3[em]helptopic.css

   helptopic {    display: block;
       margin-top:3cm;
       margin-left:2cm;
       margin-right:2cm;
       margin-bottom:6cm;
       font-family:Verdana, Arial;
       font-size:11pt;
       padding:20pt; }
   
  title {display: block;
       font-size:20pt;
       color:blue;
       font-weight:bold;
       text-align:center;
       margin-bottom:30pt;
       text-decoration:underline;}
  
   procedure {display:block;
       margin-bottom:30pt}
  
   step {display:block;
       margin-bottom:18pt}
  
   action {display:block;
       font-weight:bold;}
  
   tip {display:block;
       font-size:10pt;
       margin-left:+1cm;
       margin-top:12pt;
       color:blue;}
  
   icon {display:inline;
       font-size:12pt;}
  
   todo {display:inline;
       color:red;}
  
   menu {display:inline;
       font-style:italic;}
  
   xref {display:inline;
       text-decoration:underline;}


Listing 13.4[em]books2.xml

   <?xml version="1.0"?>
   <?xml-stylesheet type="text/css" href="books.css"?>
   <books xmlns:html="http://www.w3.org/TR/REC-html40">
        <html:form>
             <html:h3>Convert to Canadian dollars:</html:h3>
             <html:input type="button" onclick="convert()" value="CAN"/>
        </html:form>
        <book>
              <title>Sam's Teach Yourself C++ in 21 Days, Second Edition
              </title>
              <author>Jesse Liberty
              </author>
              <description>This book teaches you the basics of 
	object-oriented programming with C++ and is completely revised to ANSI 
	standards. It can be used with any C++ compiler.
              </description>
              <ISBN>0-672-31070-8
              </ISBN>
              <pages>700
              </pages>
              <targetgroup>Beginning - Intermediate
              </targetgroup>	
              <price unit="USA">29.99
              </price>
       </book>
       <book>
              <title>Maximum Java 1.1
              </title>
              <author>Glenn Vanderburg et al.
              </author>
              <description>Written by JAVA experts, this book explores 
	the JAVA 1.1 language, tools, and core JAVA API without reviewing fundamentals
	 or basic techniques.
              </description>
              <ISBN>1-57521-290-0
              </ISBN>
              <pages>900
              </pages>
              <targetgroup>Expert
              </targetgroup>	
              <price unit="USA">49.99
              </price>
       </book>
       <book>
              <title>JavaScript Unleashed, Second Edition
              </title>
              <author>Richard Wagner et al.
              </author>
                <description>This book helps you thoroughly understand and 
	apply JavaScript.
              </description>
              <ISBN>1-57521-306-0
              </ISBN>
              <pages>1000
              </pages>
              <targetgroup>Casual - Experienced
              </targetgroup>	
              <price>49.99
              </price>
       </book>
       <book>
              <title>Sam's Teach Yourself Visual C++ 5 in 21 Days, Fourth Edition
              </title>
              <author>Nathan and Ori Gurewich
              </author>
              <description>This book merges the power of the best-selling 
	"Teach Yourself" series with the knowledge of Nathan and Ori Gurewich, renowned
	 experts in code, creating the most efficient way to learn Visual C++.
              </description>
              <ISBN>0-672-31014-7
              </ISBN>
              <pages>832
              </pages>
              <targetgroup>New - Casual
              </targetgroup>	
              <price>35.00
              </price>
       </book>
         <html:script src="convert.js" />
	   </books>


Listing 13.5[em]convert.js

  function convert() {
  var priceElements = document.getElementsByTagName("price");
  //returns a NodeList of all elements with the tag price 
  var i;
  for (i=0;i < priceElements.length;i++) {
 // looping over all those price elements
       var USAprice = 
	parseFloat(priceElements.item(i).firstChild.nodeValue);
       //the firstChild property returns the Text node
       //of this Text node we take the nodeValue, being the text itself
       //we convert this text to a number (floating)
      priceElements.item(i).setAttribute("unit","Canadian dollar");
      //we set the attribute "unit" to value "Canadian dollar"
      var convertedprice = USAprice * 1.4;
      //we convert the price to Canadian dollar
      var newprice = document.createTextNode(convertedprice);
      //we create a new Text node containing the new price
      priceElements.item(i).replaceChild(newprice,priceElements.item(i).firstChild);
      //we replace the old Text node with the new one
      }
  }


Listing 13.6[em]footer.htm

  <hr style="margin-top:2cm">
  <div class="footer" align="center">
  <small>
  Copyright ACME Company<BR>
  January 1997
  </small>
  </div>


Listing 13.7[em]A Viewport stylesheet Definition

  <!doctype stylesheet PUBLIC "-//Synex Information AB//DTD stylesheet V2.00//EN>
  <stylesheet>
  </stylesheet>


Listing 13.8[em]A Viewport Navigator Definition

  <!doctype toc-def PUBLIC "-//SYNEX Information AB//DTD Navigator v2.00//EN">
  <toc-def>
  </toc-def>


Listing 13.9[em]Defining Relationships Between a DTD and Viewport Style Sheets and Navigators

  PUBLIC "-//Pro Text//DTD online help//EN"
      STYLESPEC "standard"     "standard.ssh"
      STYLESPEC "large"     "large.ssh"
      NAVIGATOR "topics"      "topics.nav"
      NAVIGATOR "figures"        "figures.nav"


Listing 13.10[em]musicians.xml

   <?xml version="1.0"?>
   <!DOCTYPE musicians [
   <!ELEMENT musicians  (musician)+ >
   <!ELEMENT musician  (name, instrument, NrOfRecordings)>
   <!ELEMENT (name, instrument, NrOfRecordings)  (#PCDATA)>
   ]>
   <musicians>
     <musician>
   <name>Joey Baron
   </name>
   <instrument>drums
   </instrument>
   <NrOfRecordings>1
   </NrOfRecordings>
     </musician>
     <musician>
   <name>Bill Frisell
   </name>
   <instrument>guitar
   </instrument>
   <NrOfRecordings>3
   </NrOfRecordings>
     </musician>
     <musician>
   <name>Don Byron
   </name>
   <instrument>clarinet
   </instrument>
   <NrOfRecordings>2
   </NrOfRecordings>
     </musician>
     <musician>
   <name>Dave Douglas
   </name>
   <instrument>trumpet
   </instrument>
   <NrOfRecordings>1
   </NrOfRecordings>
     </musician>
   </musicians>


Listing 13.11[em]musicians.xml with Processing Instructions

  <?xml version="1.0"?>
  <!DOCTYPE musicians [
  <!ELEMENT musicians  (musician)+ >
  <!ELEMENT musician  (name, instrument, NrOfRecordings)>
  <!ELEMENT name  (#PCDATA)>
  <!ELEMENT instrument  (#PCDATA)>
  <!ELEMENT NrOfRecordings (#PCDATA)>
  ]>
  <?stylespec "table" "musicians.ssh"?>
   <?stylespec "indent" "musician2.ssh"?>
   <?navigator "toc" "musicians.nav"?>
   <musicians>
   …
   </musicians>


Listing 13.12[em]An Example Style Sheet

   <!DOCTYPE STYLESHEET PUBLIC "-//SYNEX INFORMATION AB//DTD STYLESHEET V2.00//EN"[
   <!ELEMENT sheet (margins?)>
   <!ELEMENT margins EMPTY>
   <!ATTLIST margins
       left CDATA #IMPLIED
       right CDATA #IMPLIED
       top CDATA #IMPLIED
       bottom CDATA #IMPLIED>
   
   <!ELEMENT font-shadow EMPTY>
   <!ATTLIST font-shadow
       v NUMBER #REQUIRED>
  
   <!ELEMENT shadow-color EMPTY>
   <!ATTLIST shadow-color
       v CDATA #REQUIRED>
   
   ]>
  
   <STYLESHEET>
  
   <STYLE TAG="NROFRECORDINGS">
   <SPC-LEFT V="36">
   <BREAK-BEFORE>
   <BREAK-AFTER>
   </STYLE>
  
   <STYLE TAG="MUSICIANS">
   <FONT-FAMILY V="Utopia">
   <FONT-SIZE V=14>
   <SPC-ABOVE V="12">
   <SPC-LEFT V="24">
   <SPC-BELOW V="12">
   <BREAK-BEFORE>
   <BREAK-AFTER>
   </STYLE>
  
   <STYLE TAG="NAME">
   <FONT-WEIGHT V=Bold>
   <FONT-SCALE V="120">
   <SPC-ABOVE V="24">
   <BREAK-BEFORE>
   <BREAK-AFTER>
   </STYLE>
  
   <STYLE TAG="INSTRUMENT">
   <SPC-LEFT V="36">
   <BREAK-BEFORE>
   <BREAK-AFTER>
   </STYLE>
  
   </STYLESHEET>


Listing 13.13[em]An Example Navigator

  <!DOCTYPE TOC-DEF PUBLIC "-//SYNEX INFORMATION AB//DTD NAVIGATOR V2.00//EN">
  
  <TOC-DEF SCALE=70>
  <TOC BODY="MUSICIAN" TITLE="NAME">
  </TOC-DEF>


Listing 13.14[em]books.xml

  <?xml version="1.0"?>
  <books>
      <book>
          <title>Sam's Teach Yourself C++ in 21 Days, Second Edition
          </title>
          <author>Jesse Liberty
          </author>
          <description>This book teaches you the basics of 
	object-oriented programming with C++ and is completely revised 
	to ANSI standards. It can be used with any C++ compiler.
          </description>
           <ISBN>0-672-31070-8
           </ISBN>
           <pages>700
           </pages>
           <targetgroup>Beginning - Intermediate
           </targetgroup>
           <price unit="USA">29.99
           </price>
       </book>
          <book>
           <title>Maximum Java 1.1
           </title>
           <author>Glenn Vanderburg et al.
           </author>
          <description>Written by JAVA experts, this book 
	explores the JAVA 1.1 language, tools, and core JAVA API without 
	reviewing fundamentals or basic techniques.
           </description>
           <ISBN>1-57521-290-0
           </ISBN>
           <pages>900
           </pages>
           <targetgroup>Expert
           </targetgroup>
           <price unit="USA">49.99
           </price>
       </book>
       <book>
           <title>JavaScript Unleashed, Second Edition
           </title>
           <author>Richard Wagner et al.
           </author>
           <description>This book helps you thoroughly understand and apply JavaScript.
           </description>
           <ISBN>1-57521-306-0
           </ISBN>
           <pages>1000
           </pages>
           <targetgroup>Casual - Experienced
           </targetgroup>
           <price>49.99
           </price>
       </book>
       <book>
           <title>Sam's Teach Yourself Visual C++ 5 in 21 Days, Fourth Edition
           </title>
           <author>Nathan and Ori Gurewich
           </author>
           <description>This book merges the power of the best-selling 
	"Teach Yourself" series with the knowledge of Nathan and Ori Gurewich, 
	renowned experts in code, creating the most efficient way to learn Visual C++.
           </description>
           <ISBN>0-672-31014-7
           </ISBN>
           <pages>832
           </pages>
           <targetgroup>New - Casual
           </targetgroup>
           <price>35.00
           </price>
       </book>
   </books>