**%WIKITOOLNAME% Site-Level Preferences**
The following settings are **_site-level preferences_** , e.g. affecting all users in all %WIKITOOLNAME% webs. These preferences can be overwritten by **_web preferences_** (topic [[WebPreferences]] in each %WIKITOOLNAME% web) and **_user preferences_** (your personal topic, i.e. [[TWikiGuest]] in the %WIKITOOLNAME%.Main web)
**_Preferences:_**
- List of %WIKITOOLNAME% webs: (the first line of a topic; to add a web see [[TWikiDocumentation]] and [[TWikiWebsTable]])
- Set WIKIWEBLIST = [%WIKITOOLNAME%](%WIKIHOMEURL%) . \{ [Main](http://www.dementia.org/twiki//view/Main/WebHome) | [TWiki](http://www.dementia.org/twiki//view/TWiki/WebHome) | [Know](http://www.dementia.org/twiki//view/Know/WebHome) | [Test](http://www.dementia.org/twiki//view/Test/WebHome) \}
- List of topics of a web: (the second line of a topic, is overwritten by web preferences)
- Set WEBTOPICLIST = %WEB% . \{ [Home](WebHome) | [Changes](WebChanges) | [Index](http://www.dementia.org/twiki//search/%WEB%/?scope=topic®ex=on&search=.*) | [Search](WebSearch) | Go
\}
- Copyright notice:
- Set WEBCOPYRIGHT = Copyright © 2000 by the contributing authors. \\nAll material on this collaboration tool is the property of the contributing authors.
\\nIdeas, requests, problems regarding %WIKITOOLNAME%? [Send](mailto:?subject=%WIKITOOLNAME% Feedback) feedback.
- Wiki webmaster email address:
- Set WIKIWEBMASTER =
- Exclude web from a `web="all"` search: (Set to `on` for hidden webs; is overwritten by web preferences)
- Set NOSEARCHALL =
- Web specific background color: (is overwritten by web preferences)
- Set WEBBGCOLOR = #C0C0C0
- [[PreviewBackground]] image:
- Set PREVIEWBGIMAGE = ![previewbg.gif](http://www.dementia.org/twiki//view/TWiki/PreviewBackground/previewbg.gif)
- Background color of non existing topic: ( default `cornsilk` or `#FFFFCE` )
- Set NEWTOPICBGCOLOR = #FFFFCE
- Font color of non existing topic: ( default `#0000FF` )
- Set NEWTOPICFONTCOLOR = #0000FF
- Horizontal size of text edit box: (can be overwritten by user preferences)
- Set EDITBOXWIDTH = 70
- Vertical size of text edit box: (can be overwritten by user preferences)
- Set EDITBOXHEIGHT = 15
- Default state of the **_link_** check box in the attach file page. Check box is initially checked if _Set ATTACHLINKBOX = CHECKED_ , unchecked if empty ( _Set ATTACHLINKBOX =_ ). If checked, a link is created to the attached file at the end of the topic: (can be overwritten by user preferences)
- Set ATTACHLINKBOX =
- http-equiv meta tags for **_view_**, **_rdiff_**, **_attach_**, **_search\*_** scripts:
- Set HTTP\_EQUIV\_ON\_VIEW =
- http-equiv meta tags for **_edit_** script. Example to expire immediately:
`Set HTTP_EQUIV_ON_EDIT = `
- Set HTTP\_EQUIV\_ON\_EDIT =
- http-equiv meta tags for **_preview_** script:
- Set HTTP\_EQUIV\_ON\_PREVIEW =
**_Notes:_**
- A preference is defined as:
`6 spaces * Set NAME = value`
Example:
- Set WEBBGCOLOR = #FFFFC0
- Preferences are used as [[TWikiVariables]] by enclosing the name in percent signs. Example:
- When you write variable `%WEBBGCOLOR%` , it gets expanded to `%WEBBGCOLOR%` .
- The sequential order of the preference settings is significant. Define preferences that use other preferences first, i.e. set `WEBCOPYRIGHT` before `WIKIWEBMASTER` since `%WEBCOPYRIGHT%` uses the `%WIKIWEBMASTER%` variable.
- You can introduce new variables and use them in your topics and templates. There is no need to change the %WIKITOOLNAME% engine (Perl scripts).
**_Related Topics:_**
- [[WebPreferences]] has preferences of the %WIKITOOLNAME%.%WEB% web.
- [[TWikiUsers]] has a list of user topics. User topics can have optional user preferences.
- [[TWikiVariables]] has a list of common `%VARIABLES%` .