[[...][...]] or <a href="...">...</a>, and may not contain any text next to the link.
To preserve the "you are here" breadcrumb, it is important to add additional pulldown menus after the INCLUDE of %SYSTEMWEB%.TopMenuSkinTopicMenu. The top level menu-bar should have this structure:
 
%INCLUDE{%SYSTEMWEB%.TopMenuSkinHomeMenu}%
   * [[%BASEWEB%.%HOMETOPIC%][<img src="%ICONURL{web-bg}%" border="0" alt="" width="16" height="16" style="background-color:%WEBBGCOLOR%" /> <nop>%MAKETEXT{"[_1] Web" args="%BASEWEB{format="$current"}%"}% %ICON{menu-down}%]]
      * [[%SCRIPTURLPATH{"view"}%/%BASEWEB%/WebCreateNewTopic?topicparent=%BASETOPIC%][ %ICON{"newtopic"}% %MAKETEXT{"Create New Topic"}%]]
      * [[%BASEWEB%.WebTopicList][ %ICON{"index"}% %MAKETEXT{"Index"}%]]
      * [[%BASEWEB%.WebSearch][ %ICON{"searchtopic"}% %MAKETEXT{"Search"}%]]
      * [[%BASEWEB%.WebChanges][ %ICON{"changes"}% %MAKETEXT{"Changes"}%]]
      * [[%BASEWEB%.WebNotify][ %ICON{"notify"}% %MAKETEXT{"Notifications"}%]]
      * [[%BASEWEB%.WebRss][ %ICON{"feed"}% %MAKETEXT{"RSS Feed"}%]]
      * [[%BASEWEB%.WebStatistics][ %ICON{"statistics"}% %MAKETEXT{"Statistics"}%]]
      * [[%BASEWEB%.WebPreferences][ %ICON{"wrench"}% %MAKETEXT{"Preferences"}%]]
%INCLUDE{%SYSTEMWEB%.TopMenuSkinTopicMenu}%
   * [[BugTracker][%ICON{bug}% Bugs %ICON{menu-down}%]]
      * [[NewReport][Create bug report]]
      * [[OpenBugs][Open bugs]]
      * [[ConfirmedBugs][Confirmed bugs]]
      * [[FixedBugs][Fixed bugs]]
[[...][...]] or <a href="...">...</a>) without any text next to the link.
<div class="twTopMenuTab"> tag.
%INCLUDE{"%SYSTEMWEB%.TopMenuSkin"}%
<div class="twTopMenuTab">
   * [[WebHome][%ICON{home}% Home %ICON{menu-down}%]]
      * [[WebNotify][Subscribe]]
      * [[WebStatistics][Statistics]]
   * [[WebSearch][%ICON{searchtopic}% Search %ICON{menu-down}%]]
      * [[WebSearchAdvanced][Advanced search]]
      * [[SearchHelp][Search help]]
</div>
Renders as:
NOTE: The pulldown menus only work if the TWiki:Plugins/JQueryPlugintemplates/vewi.topmenu.tmpl
TopMenuSkin.zip in your twiki installation directory
* Set SKIN = topmenu, pattern
%WEB{format="$current"}% to show the current web in the Web menu. To use this skin on TWiki 4.2 or 4.3, remove the parameter from the WEB variable (to show only %WEB%), or apply patch TWikibug:Item6424%ADDTOHEAD{}% to add style sheets to the HTML head section. Apply patch TWiki:Support.SID-01117
 to TWikiDocGraphics.
 to TWikiDocGraphics.
twiki/templates/view.topmenu.tmpl. Details in PatternSkinCustomization and PatternSkinCssCookbook.
The top bar TopMenuSkinTopBar (with menu bar, logo and search boxes) can be cloned using same topic name and customized per web.
| Skin Author: |  TWiki:Main.PeterThoeny | 
| Copyright: |  © 2010-2011, TWiki:Main.PeterThoeny © 2010-2011 TWiki:TWiki.TWikiContributor  | 
| License: |  GPL (GNU General Public License | 
| Description: | Top-menu skin | 
| Screenshot: |     | 
| Preview: | Preview with this topic | 
| Base Name: | topmenu,pattern | 
| Skin Version: | 2011-07-28 | 
| Change History: | |
| 2011-07-28: |  TWikibug:Item6780 | 
| 2011-07-10: |  TWikibug:Item6725 | 
| 2011-07-01: |  TWikibug:Item6763 | 
| 2011-06-14: |  TWikibug:Item6751 | 
| 2011-05-18: |  TWikibug:Item6682 | 
| 2011-03-09: |  TWikibug:Item6659 | 
| 2011-01-03: |  TWikibug:Item6628 | 
| 2010-12-02: |  TWikibug:Item6614 | 
| 2010-10-03: |  TWikibug:Item6588 | 
| 2010-09-23: |  TWikibug:Item6530 | 
| 2010-08-21: |  TWikibug:Item6524 | 
| 2010-06-09: |  TWikibug:Item6485 | 
| 2010-06-06: |  TWikibug:Item6482 | 
| 2010-06-05: |  TWikibug:Item6475 | 
| 2010-05-26: |  TWikibug:Item6471 | 
| 2010-05-20: |  TWikibug:Item6455 | 
| 2010-05-01: |  TWikibug:Item6437 | 
| 2010-04-26: |  TWikibug:Item6435 | 
| 2010-04-21: |  TWikibug:Item6431 | 
| 2010-04-19: |  TWikibug:Item6413 | 
| Dependencies: |  TWiki 4.2 or later; TWiki:Plugins/PatternSkin | 
| Skin Home: |  http://TWiki.org/cgi-bin/view/Plugins/TopMenuSkin | 
| Feedback: |  http://TWiki.org/cgi-bin/view/Plugins/TopMenuSkinDev | 
| Appraisal: |  http://TWiki.org/cgi-bin/view/Plugins/TopMenuSkinAppraisal |