H

H command (debugger) : Debugger Commands
h command (debugger) : Debugger Commands
-h switch, perl : Switches
<h#> tags Headings Heading Tags Adding Images to Headings <hn>
h2ph Perl script : Socket I/O in Perl
hard references What Is a Reference? Creating Hard References Hard References Don't Work as Hash Keys
Harness module : Test::Harness--Run Perl Standard Te...
"has-a" relationship : Containment (the "Has-a" Relationship)
hash mark (see # (sharp))
Hash module : Tie::Hash, Tie::StdHash--Base Class...
hash property URL.hash Properties Properties
hashes Hashes. Built-in Data Types Hashes (Associative Arrays) anonymous, references to : The Anonymous Hash Composer of arrays, code for : Hashes of Arrays automatic sorting of : In-memory databases binding DBM file to : dbmopen of complex records : Generation of a hash of complex records deleting values from : delete dictonary file, searching : Search::Dict--Search for Key in Dic... global : Global Special Arrays hard references as keys : Hard References Don't Work as Hash Keys initializing with x operator : Multiplicative Operators instead of linear searches : Time Efficiency inverting : reverse key/value pair precedence : Hashes (Associative Arrays) multidimensional : Hashes of Hashes names for : Variables returning keys each values keys SubstrHash module : Tie::SubstrHash--Fixed-table-size, ... symbol tables : Symbol Tables tied : Tie::Hash, Tie::StdHash--Base Class... typing : Tying Hashes
HEAD method : The HEAD method
<head> tags HTML Document Structure <head> Structure of an HTML Document The <head> Tag Related Header Tags Scripts Event Handlers
headers extra : The Extra Headers Section HTTP (see HTTP headers) mail (see mail) malformed : Malformed Header from Script rules in : Using Rules in Headers and Footers table The <thead> tag <thead> The <th> and <td> Tags vertical spacers with : Creating vertical space
headings Headings Headings Adding Images to Headings <hn> images in : Adding Images to Headings straddle heads : Straddle heads table side heads Side Heads When tables aren't implemented text size and : Using Headings for Smaller Text
height (see size)
height attribute <applet> tag Attributes The height and width attributes <embed> tag Attributes The align, border, height, width, h... <iframe> tag Attributes The height and width attributes <img> tag Attributes Other Image Techniques Image.height The height and width attributes Problems with height and width Images and form event handlers <marquee> The height and width attributes Attributes <object> The align, border, height, width, h... Attributes <spacer> Creating blocks of space Attributes <tr> : The height attribute
height property The height property Other Image Properties Properties for Image object : Image.height
help, Netscape : Official Netscape Documentation
"here" documents Creating Dynamic Home Pages "Here" documents
hex command Designing Applications Using Forms ... Game of Concentration hex
hexadecimal encoding Encoded Data Sending Data to the Server
hexadecimal numbers String literals The rules of regular expression matching hex Converting Strings to Numbers Octal and Hexadecimal Literals for color values : Color Values
hidden attribute (<embed>) : The hidden attribute
Hidden element Form Elements Hidden Hidden.form Hidden.name Hidden.type Hidden.value Hidden Object
hidden form fields Text and Password Fields Hidden Fields CSI Statements and Hidden Fields Hidden Fields <input type=hidden> Hidden fields Hidden Object
hide visibility : The visibility attribute
HideObject( ) : Live3D
hiding scripts from browsers Comments Hiding Scripts from Old Browsers
hierarchy JSObject object : The JSObject Class object : The JavaScript Object Hierarchy
<hint> tags : Quiz/Test Form Application
hints, compiler : Global Special Variables
history browsing The History Object JavaScript and Security History command : Using the Debugger Internet : In the Beginning Perl : History Made Practical World Wide Web : HTML and the World Wide Web
History object History.go() Doesn't Work with Frames The History Object Security Holes and Security Hobbles Security Hobbles in Navigator 3.0 History History.back() History.current History.forward() History.go() History.length History.next History.previous History Object
history property The History Object Window.history Properties
hit counter (see access counters)
hobbles, security : Security Holes and Security Hobbles
home directory : chdir
home pages The Flow of Information Hyperlink Names and Navigation The http path Perl : The Perl Homepage
horizontal alignment (see alignment) margins The hspace and vspace attributes The hspace and vspace attributes rules Horizontal rules Horizontal Rules Using Rules in Headers and Footers <hr> whitespace : Creating horizontal space
Host header : Host
host property URL.host Properties Properties
hostname command : Socket I/O in Perl
hostname property URL.hostname Properties Properties
hostnames Sys::Hostname--Try Every Conceivabl... getting from network addresses : gethostbyaddr translating to addresses gethostbyname getnetbyname
hosts Uniform Resource Locators (URLs) pinging : Net::Ping--Check Whether a Host Is ...
hosts file (see /etc/hosts file)
hotspots (see imagemaps)
hours Date.getHours() Date.setHours() (see also date and time)
<hr> tag Horizontal rules The <hr> Tag Combining rule attributes Flushing Generated Output <hr>
href attribute <a> The href attribute Attributes <area> Attributes The href attribute <base> Attributes The href attribute <link> Attributes String.link() The href attribute
href property The Location Object URL.href Properties Properties
hspace attribute <applet> Attributes The hspace and vspace attributes <embed> : The align, border, height, width, h... <iframe> : Attributes <img> The hspace and vspace attributes Image.hspace Attributes <marquee> The hspace and vspace attributes Attributes <object> The align, border, height, width, h... Attributes <table> Attributes The <table> Tag
hspace property Other Image Properties Image.hspace Properties
HTML (Hypertext Markup Language) HTML: What It Is Yielding to the Browser HTML Overview attributes (see attributes, HTML tag) (see also under specific attribute name or function) character entities (see entities) comments Common Errors Comments Hiding Scripts from Old Browsers CSS (see Cascading Style Sheets) DTD (Document Type Definition) for HTML Grammar The HTML 3.2 DTD HTML Document Elements documents (see HTML documents) dynamic : Dynamic HTML executing external programs Configuration Executing External Programs extensions to HTML Standards and Extensions Nonstandard Extensions Beyond Extensions: Exploiting Bugs forms (see forms) frames (see frames) grammar of HTML Grammar The Grammar JavaScript entities JavaScript Entities JavaScript Entity Execution links (see links) parsing process : Scripts quick reference HTML Tag Quick Reference tables (see tables) text editors for Word processor or HTML editor? Writing Tools version 3.2 The HTML 3.2 DTD Is HTML 3.2 Really a Big Deal? HTML Standards and Extensions
HTML attributes (see attributes, HTML tag) (see also under specific attribute name or function)
HTML documents <body> tags for (see <body> tags) boilerplates Boilerplate HTML Documents Including Boilerplates colors in (see colors) designing for audience : Design for Your Audience document automation Supporting Document Automation The n attribute document-level styles Document-Level Style Sheets The pros and cons of document-level... dynamic Dynamic Documents Server-push example application for... embedded objects Embedded Content The type attribute embedding JavaScript in (see JavaScript) forms (see forms) frames in (see frames) headings in (see headings) home pages The Flow of Information Hyperlink Names and Navigation The http path images in (see images and graphics) linking (see links) multicolumn pages Multicolumn Pages Straddle heads page layout of Content Versus Appearance HTML and Text relationships between Establishing Document Relationships How browsers might use <link... searchable Searchable Documents Creating Searchable Documents Server dependencies sectioning Divisions and Paragraphs Allowed paragraph usage Using Rules to Divide Your Document structure of HTML Skeleton Multimedia Anatomy of an HTML Document Structure of an HTML Document The Document Header The <body> Tag styles for Applying Styles to Documents The pros and cons of external styles tables in (see tables) titles of HTML Skeleton The <title> Tag What's in a title? Appropriate Use of Headings virtual (see dynamic documents)
<html> tags The <html> Tag HTML Document Structure <html>
HTML tags (see also under specific tag name or function) HTML Tags Quick Reference to Form Tags HTML Embedded Tags HTML Tags Ignored or Redundant Tags Exploring JavaScript attributes for (see attributes, HTML tag) content-based style tags Content-based text styles Document Content Comments Content-Based Styles Combining Content-Based Styles grammar for : The Grammar nesting : Proper and Improper Nesting physical style tags Physical styles Physical Styles Physical Style Tags Combining Physical Styles quick reference for : HTML Tag Quick Reference stripping : How can I strip all the HTML tags f... styles for The Elements of Styles Class inheritance Applying Styles to Documents The pros and cons of external styles tagless styles : Tag-Less Styles: The <span&g... &{} with Core Language Changes JavaScript Entities
HTTP (Hypertext Transfer Protocol) The Flow of Information HTTP Overview Server Response Codes checking links : Checking Hypertext (HTTP) Links client requests : Client Requests media types : Media Types and Subtypes server responses : Server Responses status codes What are all the server response co... Status Codes The "No Response" Code Checking Hypertext (HTTP) Links HTTP Basics Server Response Codes HTTP headers (see also under specific header name) Creating Virtual Documents HTTP Headers Media Types and Subtypes Creating Virtual Documents HTTP Basics HTTP Headers Media Types and Subtypes Internal Workings of CGI About This Server CGI and Response Headers The "Expires" and "Pragma" Headers Client Pull complete (non-parsed) : Complete (Non-Parsed) Headers header block syntax : CGI and Response Headers non-parsed : Server Push http URL The http URL Sample http URLs http-equiv attribute (<meta>) The http-equiv attribute Uniquely Refreshing Attributes http: protocol specifier : Object Model Differences HTTP_ACCEPT variable CGI Environment Variables Using Environment Variables Tcl Accept Types and Content Types HTTP_COOKIE variable : Netscape Persistent Cookies HTTP_FROM variable CGI Environment Variables How can I tell what user/host/brows... Using Environment Variables User Authentication and Identification HTTP_REFERER variable CGI Environment Variables Using Environment Variables Where Did You Come From? HTTP_USER_AGENT variable CGI Environment Variables How can I tell what user/host/brows... Using Environment Variables Check the Client Browser C/C++ The imagemap display httpd server : WWW Server Information httpd.conf file : Configuring the Server hypermedia Hypermedia Documents Server Push hypertext links (see links) Hypertext Markup Language (see HTML) Hypertext Transfer Protocol (see HTTP) hyphen (see -) Symbols | A | B | C | D | E | F | G | H | I | J | K | L | M | N | O | P | Q | R | S | T | U | V | W | X | Y | Z Copyright © 1997 O'Reilly & Associates, Inc. All Rights Reserved.