*/
void setup_timeline(void){
  double tmDiff;
  char zTmDiff[20];
  static const char *azTimeFormats[] = {
      "0", "HH:MM",
      "1", "HH:MM:SS",
      "2", "YYYY-MM-DD HH:MM"
      "2", "YYYY-MM-DD HH:MM",
      "3", "YYMMDD HH:MM"
  };
  login_check_credentials();
  if( !g.perm.Setup ){
    login_needed();
  }

  style_header("Timeline Display Preferences");

    @ %s(zTmDiff) hours behind UTC.</p>
  }else{
    @ %s(zTmDiff) hours ahead of UTC.</p>
  }

  @ <hr />
  multiple_choice_attribute("Per-Item Time Format", "timeline-date-format", "tdf", "0",
                            3, azTimeFormats);
                            4, azTimeFormats);
  @ <p>If the "HH:MM" or "HH:MM:SS" format is selected, then the date is shown
  @ in a separate box (using CSS class "timelineDate") whenever the date changes.
  @ With the "YYYY-MM-DD&nbsp;HH:MM" format, the complete date and time is shown on
  @ every timeline entry (using the CSS class "timelineTime").</p>
  @ With the "YYYY-MM-DD&nbsp;HH:MM" and "YYMMDD ..." formats, the complete date
  @ and time is shown on every timeline entry (using the CSS class "timelineTime").</p>

  @ <hr />
  onoff_attribute("Show version differences by default",
                  "show-version-diffs", "vdiff", 0, 0);
  @ <p>On the version-information pages linked from the timeline can either
  @ show complete diffs of all file changes, or can just list the names of
  @ the files that have changed.  Users can get to either page by