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  18     <div class="TITLEPAGE">
  19       <h1 class="TITLE"><a name="AEN2" id="AEN2">Privoxy 3.0.20 User
  20       Manual</a></h1>
  21
  22       <p class="PUBDATE"><sub><a href="copyright.html">Copyright</a> &copy;
  23       2001-2013 by <a href="http://www.privoxy.org/" target="_top">Privoxy
  24       Developers</a></sub><br></p>
  25
  26       <p class="PUBDATE">$Id: user-manual.sgml,v 2.163 2013/01/18 12:31:41
  27       fabiankeil Exp $<br></p>
  28
  29       <div>
  30         <div class="ABSTRACT">
  31           <a name="AEN9" id="AEN9"></a>
  32
  33           <p>The <i class="CITETITLE">Privoxy User Manual</i> gives users
  34           information on how to install, configure and use <a href=
  35           "http://www.privoxy.org/" target="_top">Privoxy</a>.</p>
  36
  37           <p>Privoxy is a non-caching web proxy with advanced filtering
  38           capabilities for enhancing privacy, modifying web page data and
  39           HTTP headers, controlling access, and removing ads and other
  40           obnoxious Internet junk. Privoxy has a flexible configuration and
  41           can be customized to suit individual needs and tastes. It has
  42           application for both stand-alone systems and multi-user
  43           networks.</p>
  44
  45           <p>Privoxy is Free Software and licensed under the GNU GPLv2.</p>
  46
  47           <p>Privoxy is an associated project of Software in the Public
  48           Interest (SPI).</p>
  49
  50           <p>Helping hands and donations are welcome:</p>
  51
  52           <ul>
  53             <li>
  54               <p><a href=
  55               "http://www.privoxy.org/faq/general.html#PARTICIPATE" target=
  56               "_top">http://www.privoxy.org/faq/general.html#PARTICIPATE</a></p>
  57             </li>
  58
  59             <li>
  60               <p><a href="http://www.privoxy.org/faq/general.html#DONATE"
  61               target=
  62               "_top">http://www.privoxy.org/faq/general.html#DONATE</a></p>
  63             </li>
  64           </ul>
  65
  66           <p>You can find the latest version of the <i class=
  67           "CITETITLE">Privoxy User Manual</i> at <a href=
  68           "http://www.privoxy.org/user-manual/" target=
  69           "_top">http://www.privoxy.org/user-manual/</a>. Please see the
  70           <a href="contact.html">Contact section</a> on how to contact the
  71           developers.</p>
  72         </div>
  73       </div>
  74       <hr>
  75     </div>
  76
  77     <div class="TOC">
  78       <dl>
  79         <dt><b>Table of Contents</b></dt>
  80
  81         <dt>1. <a href="introduction.html">Introduction</a></dt>
  82
  83         <dd>
  84           <dl>
  85             <dt>1.1. <a href="introduction.html#FEATURES">Features</a></dt>
  86           </dl>
  87         </dd>
  88
  89         <dt>2. <a href="installation.html">Installation</a></dt>
  90
  91         <dd>
  92           <dl>
  93             <dt>2.1. <a href="installation.html#INSTALLATION-PACKAGES">Binary
  94             Packages</a></dt>
  95
  96             <dd>
  97               <dl>
  98                 <dt>2.1.1. <a href=
  99                 "installation.html#INSTALLATION-DEB">Debian and
 100                 Ubuntu</a></dt>
 101
 102                 <dt>2.1.2. <a href=
 103                 "installation.html#INSTALLATION-PACK-WIN">Windows</a></dt>
 104
 105                 <dt>2.1.3. <a href=
 106                 "installation.html#INSTALLATION-OS2">OS/2</a></dt>
 107
 108                 <dt>2.1.4. <a href="installation.html#INSTALLATION-MAC">Mac
 109                 OS X</a></dt>
 110
 111                 <dt>2.1.5. <a href=
 112                 "installation.html#OS-X-INSTALL-FROM-PACKAGE">Installation
 113                 from ready-built package</a></dt>
 114
 115                 <dt>2.1.6. <a href=
 116                 "installation.html#OS-X-INSTALL-FROM-SOURCE">Installation
 117                 from source</a></dt>
 118
 119                 <dt>2.1.7. <a href=
 120                 "installation.html#INSTALLATION-TBZ">FreeBSD</a></dt>
 121               </dl>
 122             </dd>
 123
 124             <dt>2.2. <a href="installation.html#INSTALLATION-SOURCE">Building
 125             from Source</a></dt>
 126
 127             <dt>2.3. <a href=
 128             "installation.html#INSTALLATION-KEEPUPDATED">Keeping your
 129             Installation Up-to-Date</a></dt>
 130           </dl>
 131         </dd>
 132
 133         <dt>3. <a href="whatsnew.html">What's New in this Release</a></dt>
 134
 135         <dd>
 136           <dl>
 137             <dt>3.1. <a href="whatsnew.html#UPGRADERSNOTE">Note to
 138             Upgraders</a></dt>
 139           </dl>
 140         </dd>
 141
 142         <dt>4. <a href="quickstart.html">Quickstart to Using Privoxy</a></dt>
 143
 144         <dd>
 145           <dl>
 146             <dt>4.1. <a href=
 147             "quickstart.html#QUICKSTART-AD-BLOCKING">Quickstart to Ad
 148             Blocking</a></dt>
 149           </dl>
 150         </dd>
 151
 152         <dt>5. <a href="startup.html">Starting Privoxy</a></dt>
 153
 154         <dd>
 155           <dl>
 156             <dt>5.1. <a href="startup.html#START-REDHAT">Red Hat and
 157             Fedora</a></dt>
 158
 159             <dt>5.2. <a href="startup.html#START-DEBIAN">Debian</a></dt>
 160
 161             <dt>5.3. <a href="startup.html#START-WINDOWS">Windows</a></dt>
 162
 163             <dt>5.4. <a href="startup.html#START-UNICES">Solaris, NetBSD,
 164             FreeBSD, HP-UX and others</a></dt>
 165
 166             <dt>5.5. <a href="startup.html#START-OS2">OS/2</a></dt>
 167
 168             <dt>5.6. <a href="startup.html#START-MACOSX">Mac OS X</a></dt>
 169
 170             <dt>5.7. <a href="startup.html#START-AMIGAOS">AmigaOS</a></dt>
 171
 172             <dt>5.8. <a href="startup.html#START-GENTOO">Gentoo</a></dt>
 173
 174             <dt>5.9. <a href="startup.html#CMDOPTIONS">Command Line
 175             Options</a></dt>
 176           </dl>
 177         </dd>
 178
 179         <dt>6. <a href="configuration.html">Privoxy Configuration</a></dt>
 180
 181         <dd>
 182           <dl>
 183             <dt>6.1. <a href="configuration.html#AEN1056">Controlling Privoxy
 184             with Your Web Browser</a></dt>
 185
 186             <dt>6.2. <a href="configuration.html#CONFOVERVIEW">Configuration
 187             Files Overview</a></dt>
 188           </dl>
 189         </dd>
 190
 191         <dt>7. <a href="config.html">The Main Configuration File</a></dt>
 192
 193         <dd>
 194           <dl>
 195             <dt>7.1. <a href="config.html#LOCAL-SET-UP">Local Set-up
 196             Documentation</a></dt>
 197
 198             <dd>
 199               <dl>
 200                 <dt>7.1.1. <a href=
 201                 "config.html#USER-MANUAL">user-manual</a></dt>
 202
 203                 <dt>7.1.2. <a href=
 204                 "config.html#TRUST-INFO-URL">trust-info-url</a></dt>
 205
 206                 <dt>7.1.3. <a href=
 207                 "config.html#ADMIN-ADDRESS">admin-address</a></dt>
 208
 209                 <dt>7.1.4. <a href=
 210                 "config.html#PROXY-INFO-URL">proxy-info-url</a></dt>
 211               </dl>
 212             </dd>
 213
 214             <dt>7.2. <a href="config.html#CONF-LOG-LOC">Configuration and Log
 215             File Locations</a></dt>
 216
 217             <dd>
 218               <dl>
 219                 <dt>7.2.1. <a href="config.html#CONFDIR">confdir</a></dt>
 220
 221                 <dt>7.2.2. <a href="config.html#TEMPLDIR">templdir</a></dt>
 222
 223                 <dt>7.2.3. <a href="config.html#LOGDIR">logdir</a></dt>
 224
 225                 <dt>7.2.4. <a href=
 226                 "config.html#ACTIONSFILE">actionsfile</a></dt>
 227
 228                 <dt>7.2.5. <a href=
 229                 "config.html#FILTERFILE">filterfile</a></dt>
 230
 231                 <dt>7.2.6. <a href="config.html#LOGFILE">logfile</a></dt>
 232
 233                 <dt>7.2.7. <a href="config.html#TRUSTFILE">trustfile</a></dt>
 234               </dl>
 235             </dd>
 236
 237             <dt>7.3. <a href="config.html#DEBUGGING">Debugging</a></dt>
 238
 239             <dd>
 240               <dl>
 241                 <dt>7.3.1. <a href="config.html#DEBUG">debug</a></dt>
 242
 243                 <dt>7.3.2. <a href=
 244                 "config.html#SINGLE-THREADED">single-threaded</a></dt>
 245
 246                 <dt>7.3.3. <a href="config.html#HOSTNAME">hostname</a></dt>
 247               </dl>
 248             </dd>
 249
 250             <dt>7.4. <a href="config.html#ACCESS-CONTROL">Access Control and
 251             Security</a></dt>
 252
 253             <dd>
 254               <dl>
 255                 <dt>7.4.1. <a href=
 256                 "config.html#LISTEN-ADDRESS">listen-address</a></dt>
 257
 258                 <dt>7.4.2. <a href="config.html#TOGGLE">toggle</a></dt>
 259
 260                 <dt>7.4.3. <a href=
 261                 "config.html#ENABLE-REMOTE-TOGGLE">enable-remote-toggle</a></dt>
 262
 263                 <dt>7.4.4. <a href=
 264                 "config.html#ENABLE-REMOTE-HTTP-TOGGLE">enable-remote-http-toggle</a></dt>
 265
 266                 <dt>7.4.5. <a href=
 267                 "config.html#ENABLE-EDIT-ACTIONS">enable-edit-actions</a></dt>
 268
 269                 <dt>7.4.6. <a href=
 270                 "config.html#ENFORCE-BLOCKS">enforce-blocks</a></dt>
 271
 272                 <dt>7.4.7. <a href="config.html#ACLS">ACLs: permit-access and
 273                 deny-access</a></dt>
 274
 275                 <dt>7.4.8. <a href=
 276                 "config.html#BUFFER-LIMIT">buffer-limit</a></dt>
 277               </dl>
 278             </dd>
 279
 280             <dt>7.5. <a href="config.html#FORWARDING">Forwarding</a></dt>
 281
 282             <dd>
 283               <dl>
 284                 <dt>7.5.1. <a href="config.html#FORWARD">forward</a></dt>
 285
 286                 <dt>7.5.2. <a href="config.html#SOCKS">forward-socks4,
 287                 forward-socks4a, forward-socks5 and forward-socks5t</a></dt>
 288
 289                 <dt>7.5.3. <a href=
 290                 "config.html#ADVANCED-FORWARDING-EXAMPLES">Advanced
 291                 Forwarding Examples</a></dt>
 292
 293                 <dt>7.5.4. <a href=
 294                 "config.html#FORWARDED-CONNECT-RETRIES">forwarded-connect-retries</a></dt>
 295               </dl>
 296             </dd>
 297
 298             <dt>7.6. <a href="config.html#MISC">Miscellaneous</a></dt>
 299
 300             <dd>
 301               <dl>
 302                 <dt>7.6.1. <a href=
 303                 "config.html#ACCEPT-INTERCEPTED-REQUESTS">accept-intercepted-requests</a></dt>
 304
 305                 <dt>7.6.2. <a href=
 306                 "config.html#ALLOW-CGI-REQUEST-CRUNCHING">allow-cgi-request-crunching</a></dt>
 307
 308                 <dt>7.6.3. <a href=
 309                 "config.html#SPLIT-LARGE-FORMS">split-large-forms</a></dt>
 310
 311                 <dt>7.6.4. <a href=
 312                 "config.html#KEEP-ALIVE-TIMEOUT">keep-alive-timeout</a></dt>
 313
 314                 <dt>7.6.5. <a href=
 315                 "config.html#TOLERATE-PIPELINING">tolerate-pipelining</a></dt>
 316
 317                 <dt>7.6.6. <a href=
 318                 "config.html#DEFAULT-SERVER-TIMEOUT">default-server-timeout</a></dt>
 319
 320                 <dt>7.6.7. <a href=
 321                 "config.html#CONNECTION-SHARING">connection-sharing</a></dt>
 322
 323                 <dt>7.6.8. <a href=
 324                 "config.html#SOCKET-TIMEOUT">socket-timeout</a></dt>
 325
 326                 <dt>7.6.9. <a href=
 327                 "config.html#MAX-CLIENT-CONNECTIONS">max-client-connections</a></dt>
 328
 329                 <dt>7.6.10. <a href=
 330                 "config.html#HANDLE-AS-EMPTY-DOC-RETURNS-OK">handle-as-empty-doc-returns-ok</a></dt>
 331
 332                 <dt>7.6.11. <a href=
 333                 "config.html#ENABLE-COMPRESSION">enable-compression</a></dt>
 334
 335                 <dt>7.6.12. <a href=
 336                 "config.html#COMPRESSION-LEVEL">compression-level</a></dt>
 337
 338                 <dt>7.6.13. <a href=
 339                 "config.html#CLIENT-HEADER-ORDER">client-header-order</a></dt>
 340               </dl>
 341             </dd>
 342
 343             <dt>7.7. <a href="config.html#WINDOWS-GUI">Windows GUI
 344             Options</a></dt>
 345           </dl>
 346         </dd>
 347
 348         <dt>8. <a href="actions-file.html">Actions Files</a></dt>
 349
 350         <dd>
 351           <dl>
 352             <dt>8.1. <a href="actions-file.html#AEN2906">Finding the Right
 353             Mix</a></dt>
 354
 355             <dt>8.2. <a href="actions-file.html#AEN2913">How to Edit</a></dt>
 356
 357             <dt>8.3. <a href="actions-file.html#ACTIONS-APPLY">How Actions
 358             are Applied to Requests</a></dt>
 359
 360             <dt>8.4. <a href=
 361             "actions-file.html#AF-PATTERNS">Patterns</a></dt>
 362
 363             <dd>
 364               <dl>
 365                 <dt>8.4.1. <a href="actions-file.html#AEN3025">The Domain
 366                 Pattern</a></dt>
 367
 368                 <dt>8.4.2. <a href="actions-file.html#AEN3101">The Path
 369                 Pattern</a></dt>
 370
 371                 <dt>8.4.3. <a href="actions-file.html#TAG-PATTERN">The Tag
 372                 Pattern</a></dt>
 373               </dl>
 374             </dd>
 375
 376             <dt>8.5. <a href="actions-file.html#ACTIONS">Actions</a></dt>
 377
 378             <dd>
 379               <dl>
 380                 <dt>8.5.1. <a href=
 381                 "actions-file.html#ADD-HEADER">add-header</a></dt>
 382
 383                 <dt>8.5.2. <a href="actions-file.html#BLOCK">block</a></dt>
 384
 385                 <dt>8.5.3. <a href=
 386                 "actions-file.html#CHANGE-X-FORWARDED-FOR">change-x-forwarded-for</a></dt>
 387
 388                 <dt>8.5.4. <a href=
 389                 "actions-file.html#CLIENT-HEADER-FILTER">client-header-filter</a></dt>
 390
 391                 <dt>8.5.5. <a href=
 392                 "actions-file.html#CLIENT-HEADER-TAGGER">client-header-tagger</a></dt>
 393
 394                 <dt>8.5.6. <a href=
 395                 "actions-file.html#CONTENT-TYPE-OVERWRITE">content-type-overwrite</a></dt>
 396
 397                 <dt>8.5.7. <a href=
 398                 "actions-file.html#CRUNCH-CLIENT-HEADER">crunch-client-header</a></dt>
 399
 400                 <dt>8.5.8. <a href=
 401                 "actions-file.html#CRUNCH-IF-NONE-MATCH">crunch-if-none-match</a></dt>
 402
 403                 <dt>8.5.9. <a href=
 404                 "actions-file.html#CRUNCH-INCOMING-COOKIES">crunch-incoming-cookies</a></dt>
 405
 406                 <dt>8.5.10. <a href=
 407                 "actions-file.html#CRUNCH-SERVER-HEADER">crunch-server-header</a></dt>
 408
 409                 <dt>8.5.11. <a href=
 410                 "actions-file.html#CRUNCH-OUTGOING-COOKIES">crunch-outgoing-cookies</a></dt>
 411
 412                 <dt>8.5.12. <a href=
 413                 "actions-file.html#DEANIMATE-GIFS">deanimate-gifs</a></dt>
 414
 415                 <dt>8.5.13. <a href=
 416                 "actions-file.html#DOWNGRADE-HTTP-VERSION">downgrade-http-version</a></dt>
 417
 418                 <dt>8.5.14. <a href=
 419                 "actions-file.html#FAST-REDIRECTS">fast-redirects</a></dt>
 420
 421                 <dt>8.5.15. <a href=
 422                 "actions-file.html#FILTER">filter</a></dt>
 423
 424                 <dt>8.5.16. <a href=
 425                 "actions-file.html#FORCE-TEXT-MODE">force-text-mode</a></dt>
 426
 427                 <dt>8.5.17. <a href=
 428                 "actions-file.html#FORWARD-OVERRIDE">forward-override</a></dt>
 429
 430                 <dt>8.5.18. <a href=
 431                 "actions-file.html#HANDLE-AS-EMPTY-DOCUMENT">handle-as-empty-document</a></dt>
 432
 433                 <dt>8.5.19. <a href=
 434                 "actions-file.html#HANDLE-AS-IMAGE">handle-as-image</a></dt>
 435
 436                 <dt>8.5.20. <a href=
 437                 "actions-file.html#HIDE-ACCEPT-LANGUAGE">hide-accept-language</a></dt>
 438
 439                 <dt>8.5.21. <a href=
 440                 "actions-file.html#HIDE-CONTENT-DISPOSITION">hide-content-disposition</a></dt>
 441
 442                 <dt>8.5.22. <a href=
 443                 "actions-file.html#HIDE-IF-MODIFIED-SINCE">hide-if-modified-since</a></dt>
 444
 445                 <dt>8.5.23. <a href=
 446                 "actions-file.html#HIDE-FROM-HEADER">hide-from-header</a></dt>
 447
 448                 <dt>8.5.24. <a href=
 449                 "actions-file.html#HIDE-REFERRER">hide-referrer</a></dt>
 450
 451                 <dt>8.5.25. <a href=
 452                 "actions-file.html#HIDE-USER-AGENT">hide-user-agent</a></dt>
 453
 454                 <dt>8.5.26. <a href=
 455                 "actions-file.html#LIMIT-CONNECT">limit-connect</a></dt>
 456
 457                 <dt>8.5.27. <a href=
 458                 "actions-file.html#LIMIT-COOKIE-LIFETIME">limit-cookie-lifetime</a></dt>
 459
 460                 <dt>8.5.28. <a href=
 461                 "actions-file.html#PREVENT-COMPRESSION">prevent-compression</a></dt>
 462
 463                 <dt>8.5.29. <a href=
 464                 "actions-file.html#OVERWRITE-LAST-MODIFIED">overwrite-last-modified</a></dt>
 465
 466                 <dt>8.5.30. <a href=
 467                 "actions-file.html#REDIRECT">redirect</a></dt>
 468
 469                 <dt>8.5.31. <a href=
 470                 "actions-file.html#SERVER-HEADER-FILTER">server-header-filter</a></dt>
 471
 472                 <dt>8.5.32. <a href=
 473                 "actions-file.html#SERVER-HEADER-TAGGER">server-header-tagger</a></dt>
 474
 475                 <dt>8.5.33. <a href=
 476                 "actions-file.html#SESSION-COOKIES-ONLY">session-cookies-only</a></dt>
 477
 478                 <dt>8.5.34. <a href=
 479                 "actions-file.html#SET-IMAGE-BLOCKER">set-image-blocker</a></dt>
 480
 481                 <dt>8.5.35. <a href=
 482                 "actions-file.html#AEN4773">Summary</a></dt>
 483               </dl>
 484             </dd>
 485
 486             <dt>8.6. <a href="actions-file.html#ALIASES">Aliases</a></dt>
 487
 488             <dt>8.7. <a href="actions-file.html#ACT-EXAMPLES">Actions Files
 489             Tutorial</a></dt>
 490
 491             <dd>
 492               <dl>
 493                 <dt>8.7.1. <a href=
 494                 "actions-file.html#AEN4837">match-all.action</a></dt>
 495
 496                 <dt>8.7.2. <a href=
 497                 "actions-file.html#AEN4859">default.action</a></dt>
 498
 499                 <dt>8.7.3. <a href=
 500                 "actions-file.html#AEN4972">user.action</a></dt>
 501               </dl>
 502             </dd>
 503           </dl>
 504         </dd>
 505
 506         <dt>9. <a href="filter-file.html">Filter Files</a></dt>
 507
 508         <dd>
 509           <dl>
 510             <dt>9.1. <a href="filter-file.html#AEN5127">Filter File
 511             Tutorial</a></dt>
 512
 513             <dt>9.2. <a href="filter-file.html#PREDEFINED-FILTERS">The
 514             Pre-defined Filters</a></dt>
 515           </dl>
 516         </dd>
 517
 518         <dt>10. <a href="templates.html">Privoxy's Template Files</a></dt>
 519
 520         <dt>11. <a href="contact.html">Contacting the Developers, Bug
 521         Reporting and Feature Requests</a></dt>
 522
 523         <dd>
 524           <dl>
 525             <dt>11.1. <a href="contact.html#CONTACT-SUPPORT">Get
 526             Support</a></dt>
 527
 528             <dt>11.2. <a href="contact.html#REPORTING">Reporting
 529             Problems</a></dt>
 530
 531             <dd>
 532               <dl>
 533                 <dt>11.2.1. <a href="contact.html#CONTACT-ADS">Reporting Ads
 534                 or Other Configuration Problems</a></dt>
 535
 536                 <dt>11.2.2. <a href="contact.html#CONTACT-BUGS">Reporting
 537                 Bugs</a></dt>
 538               </dl>
 539             </dd>
 540
 541             <dt>11.3. <a href="contact.html#CONTACT-FEATURE">Request New
 542             Features</a></dt>
 543
 544             <dt>11.4. <a href="contact.html#MAILING-LISTS">Mailing
 545             Lists</a></dt>
 546           </dl>
 547         </dd>
 548
 549         <dt>12. <a href="copyright.html">Privoxy Copyright, License and
 550         History</a></dt>
 551
 552         <dd>
 553           <dl>
 554             <dt>12.1. <a href="copyright.html#AEN5609">License</a></dt>
 555
 556             <dt>12.2. <a href="copyright.html#HISTORY">History</a></dt>
 557
 558             <dt>12.3. <a href="copyright.html#AUTHORS">Authors</a></dt>
 559           </dl>
 560         </dd>
 561
 562         <dt>13. <a href="seealso.html">See Also</a></dt>
 563
 564         <dt>14. <a href="appendix.html">Appendix</a></dt>
 565
 566         <dd>
 567           <dl>
 568             <dt>14.1. <a href="appendix.html#REGEX">Regular
 569             Expressions</a></dt>
 570
 571             <dt>14.2. <a href="appendix.html#AEN5853">Privoxy's Internal
 572             Pages</a></dt>
 573
 574             <dd>
 575               <dl>
 576                 <dt>14.2.1. <a href=
 577                 "appendix.html#BOOKMARKLETS">Bookmarklets</a></dt>
 578               </dl>
 579             </dd>
 580
 581             <dt>14.3. <a href="appendix.html#CHAIN">Chain of Events</a></dt>
 582
 583             <dt>14.4. <a href="appendix.html#ACTIONSANAT">Troubleshooting:
 584             Anatomy of an Action</a></dt>
 585           </dl>
 586         </dd>
 587       </dl>
 588     </div>
 589   </div>
 590
 591   <div class="NAVFOOTER">
 592     <hr align="left" width="100%">
 593
 594     <table summary="Footer navigation table" width="100%" border="0"
 595     cellpadding="0" cellspacing="0">
 596       <tr>
 597         <td width="33%" align="left" valign="top">&nbsp;</td>
 598
 599         <td width="34%" align="center" valign="top">&nbsp;</td>
 600
 601         <td width="33%" align="right" valign="top"><a href=
 602         "introduction.html" accesskey="N">Next</a></td>
 603       </tr>
 604
 605       <tr>
 606         <td width="33%" align="left" valign="top">&nbsp;</td>
 607
 608         <td width="34%" align="center" valign="top">&nbsp;</td>
 609
 610         <td width="33%" align="right" valign="top">Introduction</td>
 611       </tr>
 612     </table>
 613   </div>
 614 </body>
 615 </html>