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# Index: V

validating
  email addresses: 9.2. Email Addresses
    9.2.1. Validating Syntax
  form input
    CGI scripts, re-validating client data with: 7.2.1.4. Validating twice
    elements: 7.2.1.1. Validating elements
    example: 7.2.1.3. Validation example
    formLib.js file: 7.2.1.3. Validation example
    input_validation.html file: 7.2.1.3. Validation example
    JavaScript, improving with: 7.2.1. Input Validation
    submits: 7.2.1.2. Validating submits
      7.2.1.3. Validation example
  input data: 8.3. Encryption
  XML data
    DTDs, using: 14.2. An Introduction to XML
    parsers, providing rules for: 14.3. Document Type Definition
    separating rules from the parser: 14.3. Document Type Definition
VALUE attribute: 4.2.3. The <INPUT> Tag
  checkboxes: 4.2.3.4. Checkboxes
  hidden fields: 4.2.3.3. Hidden fields
  image buttons: 4.2.3.8. Image buttons
  plain buttons: 4.2.3.9. Plain buttons
  radio buttons: 4.2.3.5. Radio buttons
  reset buttons: 4.2.3.7. Reset buttons
  submit buttons: 4.2.3.6. Submit buttons
  tag: 4.2.4.1. The <OPTION> tag
  text fields: 4.2.3.1. Text fields
var attribute (SSI): 6.2.3. Environment Variables
variables: 1.2. Introduction to CGI
  (see also environment variables)
  bracket pairs enclosing in Embperl: 6.4.2.1. Embperl code blocks
  capitalization of, coding style guide: 16.2. Coding Guidelines
  declarations
    strict mode, using: 15.2.1. Use strict
  declaring and reducing number of global: 1.2.1. Sample CGI
  dumping to browser for testing: 15.3.4. Dumping Variables
  global, declaring with use vars statement: 10.4.2.2. Address book CGI script
  JavaScript, case sensitivity: 7.4.1. Bookmarklet Basics
  local
    bracket pair, enclosing in Embperl: 6.4.2.1. Embperl code blocks
  localizing with my function: 17.1.3. Localize Variables with my
  mod-perl and: 17.3.2. mod_perl Considerations
  scope, code blocks enclosed in bracket pairs: 6.4.2.2. Variable scope
  separation into packages: 5.1.3. Standard and Object-Oriented Syntax
  strict rules for, using: 1.2.1. Sample CGI
  strict types, Perl lacking requirement for: 1.3.1. Why Perl?
version strings: 2.3.1. The Request Line
versions
  CGI.pm module: 5.1. Overview
  Per modules, storing in $VERSION: 5.5.4. Custom Module
  Perl, checking with -v option: 5.1. Overview
  protocols in HTTP response headers: 2.4.1. The Status Line
View Source option: 11.2. Hidden Fields
viewer, Perl documentation: B.2. perldoc
virtual paths: 1.4.1.1. Configuring by directory
virtual text wrapping: 4.2.5. The <TEXTAREA> Tag
virtual_host method: 5.2.1.7. virtual_host

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