Difference between revisions of "MediaWiki:Common.js"

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(New page: //<source lang="javascript"> * Description: Redirects from /User:UserName/skin.js or .css to the user's actual skin page * Maintainer: Cacycle: if (wgArticleId == 0 && wgUserName...)
 
 
(8 intermediate revisions by the same user not shown)
Line 1: Line 1:
//<source lang="javascript">
+
// ============================================================
 +
// BEGIN Enable multiple onload functions
 
   
 
   
/*
+
  // setup onload functions this way:
  * Description: Redirects from /User:UserName/skin.js or .css to the user's actual skin page
+
  // aOnloadFunctions[aOnloadFunctions.length] = function_name; // without brackets!
* Maintainer: Cacycle
+
  */
+
if (wgArticleId == 0 && wgUserName) {
+
  var slash = wgPageName.indexOf('/');
+
  var norm = wgPageName.substr(0, slash) + wgPageName.substr(slash).toLowerCase();
+
  var test = 'User:' + wgUserName.replace(/ /g, '_') + '/skin.';
+
  var ext = null;
+
  if (norm == test + 'js') ext = 'js';
+
  else if (norm == test + 'css') ext = 'css';
+
  if (ext != null) window.location.href = window.location.href.replace(/\/skin.(css|js)/i, '/' + skin + '.' + ext);
+
}
+
 
   
 
   
/** extract a URL parameter from the current URL **********
+
  if (!window.aOnloadFunctions) {
* From [[en:User:Lupin/autoedit.js]]
+
  var aOnloadFunctions = new Array();
*
+
  }
* paramName  : the name of the parameter to extract
+
*/
+
function getURLParamValue( paramName, url)
+
{
+
  if (typeof (url) == 'undefined'  || url === null) url = document.location.href;
+
var cmdRe=RegExp( '[&?]' + paramName + '=([^&#]*)' ); // Stop at hash
+
var m=cmdRe.exec(url);
+
  if (m && m.length > 1) return decodeURIComponent(m[1]);
+
return null;
+
}
+
 
   
 
   
/** &withJS= URL parameter *******
+
  window.onload = function() {
  * Allow to try custom scripts from MediaWiki space
+
  if (window.aOnloadFunctions) {
* without editing [[Special:Mypage/monobook.js]]
+
    for (var _i=0; _i<aOnloadFunctions.length; _i++) {
*/
+
      aOnloadFunctions[_i]();
var extraJS = getURLParamValue("withJS");
+
    }
if ( extraJS && extraJS.match("^MediaWiki:[^&<>=%]*\.js$") ) {
+
  }
  importScript(extraJS);
+
}
}
+
 
   
 
   
/* Import more specific scripts if necessary */
+
// END Enable multiple onload functions
 +
// ============================================================
 +
 
 +
//================================================================================
 +
//*** Dynamic Navigation Bars
 
   
 
   
if (wgAction == "edit" || wgAction == "submit" || wgPageName == "Special:Upload") //scripts specific to editing pages
+
// set up the words in your language
{
+
var NavigationBarHide = '[hide]';
    importScript("MediaWiki:Common.js/edit.js")
+
var NavigationBarShow = '[show]';
}
+
else if (wgPageName == "Special:Watchlist") //watchlist scripts
+
{
+
    importScript("MediaWiki:Common.js/watchlist.js")
+
}
+
if( wgNamespaceNumber == 6 ) {
+
    importScript('MediaWiki:Common.js/file.js');
+
}
+
 
   
 
   
/** For sysops and accountcreators *****************************************
+
  // set up max count of Navigation Bars on page,
*
+
  // if there are more, all will be hidden
*  Description: Allows for sysop-specific Javascript at [[MediaWiki:Sysop.js]],
+
  // NavigationBarShowDefault = 0; // all bars will be hidden
*              and accountcreator-specific CSS at [[MediaWiki:Accountcreator.css]].
+
  // NavigationBarShowDefault = 1; // on pages with more than 1 bar all bars will be hidden
  */
+
  if (typeof NavigationBarShowDefault == 'undefined' ) {
if ( wgUserGroups ) {
+
    var NavigationBarShowDefault = 0;
  for ( var g = 0; g < wgUserGroups.length; ++g ) {
+
  }
    if ( wgUserGroups[g] == "sysop" ) {
+
      importStylesheet("MediaWiki:Sysop.css");
+
      addOnloadHook( function() {
+
        if ( !window.disableSysopJS ) {
+
          importScript("MediaWiki:Sysop.js");
+
        }
+
      } );
+
    }
+
    else if ( wgUserGroups[g] == "accountcreator" ) {
+
      importStylesheet("MediaWiki:Accountcreator.css");
+
    }
+
  }
+
}
+
+
+
/** WikiMiniAtlas *******************************************************
+
  *
+
  *  Description: WikiMiniAtlas is a popup click and drag world map.
+
  *              This script causes all of our coordinate links to display the WikiMiniAtlas popup button.
+
  *              The script itself is located on meta because it is used by many projects.
+
  *              See [[Meta:WikiMiniAtlas]] for more information.
+
  * Maintainers: [[User:Dschwen]]
+
  */
+
+
if (wgServer == "https://secure.wikimedia.org") {
+
    var metaBase = "https://secure.wikimedia.org/wikipedia/meta";
+
} else {
+
    var metaBase = "http://meta.wikimedia.org";
+
}
+
importScriptURI(metaBase+"/w/index.php?title=MediaWiki:Wikiminiatlas.js&action=raw&ctype=text/javascript&smaxage=21600&maxage=86400")
+
+
/* Scripts specific to Internet Explorer */
+
+
if (navigator.appName == "Microsoft Internet Explorer")
+
{
+
    /** Internet Explorer bug fix **************************************************
+
    *
+
    *  Description: Fixes IE horizontal scrollbar bug
+
    *  Maintainers: [[User:Tom-]]?
+
    */
+
+
    var oldWidth;
+
    var docEl = document.documentElement;
+
+
    function fixIEScroll()
+
    {
+
        if (!oldWidth || docEl.clientWidth > oldWidth)
+
            doFixIEScroll();
+
        else
+
            setTimeout(doFixIEScroll, 1);
+
+
        oldWidth = docEl.clientWidth;
+
    }
+
+
    function doFixIEScroll() {
+
        docEl.style.overflowX = (docEl.scrollWidth - docEl.clientWidth < 4) ? "hidden" : "";
+
    }
+
   
+
    document.attachEvent("onreadystatechange", fixIEScroll);
+
    document.attachEvent("onresize", fixIEScroll);
+
+
    // In print IE (7?) does not like line-height
+
    appendCSS( '@media print { sup, sub, p, .documentDescription { line-height: normal; }}');
+
+
    // IE overflow bug
+
    appendCSS('div.overflowbugx { overflow-x: scroll !important; overflow-y: hidden !important; } div.overflowbugy { overflow-y: scroll !important; overflow-x: hidden !important; }');
+
   
+
    // IE zoomfix
+
    //Use to fix right floating div/table inside tables.
+
    appendCSS('.iezoomfix div, .iezoomfix table { zoom: 1;}' );
+
+
    //Import scripts specific to Internet Explorer 6
+
    if (navigator.appVersion.substr(22, 1) == "6") {
+
        importScript("MediaWiki:Common.js/IE60Fixes.js")
+
    }
+
}
+
   
+
/* Load fixes for Windows font rendering */
+
if( navigator.platform.indexOf( "Win" ) != -1 ) {
+
  importStylesheet( 'MediaWiki:Common.css/WinFixes.css' );
+
}
+
+
/* Test if an element has a certain class **************************************
+
*
+
* Description: Uses regular expressions and caching for better performance.
+
* Maintainers: [[User:Mike Dillon]], [[User:R. Koot]], [[User:SG]]
+
*/
+
+
var hasClass = (function () {
+
    var reCache = {};
+
    return function (element, className) {
+
        return (reCache[className] ? reCache[className] : (reCache[className] = new RegExp("(?:\\s|^)" + className + "(?:\\s|$)"))).test(element.className);
+
    };
+
})();
+
+
+
/** Interwiki links to featured articles ***************************************
+
*
+
*  Description: Highlights interwiki links to featured articles (or
+
*              equivalents) by changing the bullet before the interwiki link
+
*              into a star.
+
*  Maintainers: [[User:R. Koot]]
+
*/
+
+
function LinkFA()
+
{
+
    if ( document.getElementById( "p-lang" ) ) {
+
        var InterwikiLinks = document.getElementById( "p-lang" ).getElementsByTagName( "li" );
+
+
        for ( var i = 0; i < InterwikiLinks.length; i++ ) {
+
            if ( document.getElementById( InterwikiLinks[i].className + "-fa" ) ) {
+
                InterwikiLinks[i].className += " FA"
+
                InterwikiLinks[i].title = "This is a featured article in another language.";
+
            } else if ( document.getElementById( InterwikiLinks[i].className + "-ga" ) ) {
+
                InterwikiLinks[i].className += " GA"
+
                InterwikiLinks[i].title = "This is a good article in another language.";
+
            }
+
        }
+
    }
+
}
+
   
+
addOnloadHook( LinkFA );
+
+
+
/** Collapsible tables *********************************************************
+
*
+
*  Description: Allows tables to be collapsed, showing only the header. See
+
*              [[Wikipedia:NavFrame]].
+
*  Maintainers: [[User:R. Koot]]
+
*/
+
+
var autoCollapse = 2;
+
var collapseCaption = "hide";
+
var expandCaption = "show";
+
+
function collapseTable( tableIndex )
+
{
+
    var Button = document.getElementById( "collapseButton" + tableIndex );
+
    var Table = document.getElementById( "collapsibleTable" + tableIndex );
+
+
    if ( !Table || !Button ) {
+
        return false;
+
    }
+
+
    var Rows = Table.rows;
+
+
    if ( Button.firstChild.data == collapseCaption ) {
+
        for ( var i = 1; i < Rows.length; i++ ) {
+
            Rows[i].style.display = "none";
+
        }
+
        Button.firstChild.data = expandCaption;
+
    } else {
+
        for ( var i = 1; i < Rows.length; i++ ) {
+
            Rows[i].style.display = Rows[0].style.display;
+
        }
+
        Button.firstChild.data = collapseCaption;
+
    }
+
}
+
+
function createCollapseButtons()
+
{
+
    var tableIndex = 0;
+
    var NavigationBoxes = new Object();
+
    var Tables = document.getElementsByTagName( "table" );
+
+
    for ( var i = 0; i < Tables.length; i++ ) {
+
        if ( hasClass( Tables[i], "collapsible" ) ) {
+
+
            /* only add button and increment count if there is a header row to work with */
+
            var HeaderRow = Tables[i].getElementsByTagName( "tr" )[0];
+
            if (!HeaderRow) continue;
+
            var Header = HeaderRow.getElementsByTagName( "th" )[0];
+
            if (!Header) continue;
+
+
            NavigationBoxes[ tableIndex ] = Tables[i];
+
            Tables[i].setAttribute( "id", "collapsibleTable" + tableIndex );
+
+
            var Button    = document.createElement( "span" );
+
            var ButtonLink = document.createElement( "a" );
+
            var ButtonText = document.createTextNode( collapseCaption );
+
+
            Button.className = "collapseButton";  //Styles are declared in Common.css
+
+
            ButtonLink.style.color = Header.style.color;
+
            ButtonLink.setAttribute( "id", "collapseButton" + tableIndex );
+
            ButtonLink.setAttribute( "href", "#" );
+
            addHandler( ButtonLink,  "click", new Function( "evt", "collapseTable(" + tableIndex + " ); return killEvt( evt );") );
+
            ButtonLink.appendChild( ButtonText );
+
+
            Button.appendChild( document.createTextNode( "[" ) );
+
            Button.appendChild( ButtonLink );
+
            Button.appendChild( document.createTextNode( "]" ) );
+
+
            Header.insertBefore( Button, Header.childNodes[0] );
+
            tableIndex++;
+
        }
+
    }
+
+
    for ( var i = 0;  i < tableIndex; i++ ) {
+
        if ( hasClass( NavigationBoxes[i], "collapsed" ) || ( tableIndex >= autoCollapse && hasClass( NavigationBoxes[i], "autocollapse" ) ) ) {
+
            collapseTable( i );
+
        }
+
        else if ( hasClass( NavigationBoxes[i], "innercollapse" ) ) {
+
            var element = NavigationBoxes[i];
+
            while (element = element.parentNode) {
+
                if ( hasClass( element, "outercollapse" ) ) {
+
                    collapseTable ( i );
+
                    break;
+
                }
+
            }
+
        }
+
    }
+
}
+
+
addOnloadHook( createCollapseButtons );
+
+
+
/** Dynamic Navigation Bars (experimental) *************************************
+
*
+
*  Description: See [[Wikipedia:NavFrame]].
+
*  Maintainers: UNMAINTAINED
+
*/
+
+
// set up the words in your language
+
var NavigationBarHide = '[' + collapseCaption + ']';
+
var NavigationBarShow = '[' + expandCaption + ']';
+
 
   
 
   
// shows and hides content and picture (if available) of navigation bars
+
// shows and hides content and picture (if available) of navigation bars
// Parameters:
+
// Parameters:
//    indexNavigationBar: the index of navigation bar to be toggled
+
//    indexNavigationBar: the index of navigation bar to be toggled
function toggleNavigationBar(indexNavigationBar)
+
function toggleNavigationBar(indexNavigationBar)
{
+
{
 
     var NavToggle = document.getElementById("NavToggle" + indexNavigationBar);
 
     var NavToggle = document.getElementById("NavToggle" + indexNavigationBar);
 
     var NavFrame = document.getElementById("NavFrame" + indexNavigationBar);
 
     var NavFrame = document.getElementById("NavFrame" + indexNavigationBar);
Line 300: Line 49:
 
     // if shown now
 
     // if shown now
 
     if (NavToggle.firstChild.data == NavigationBarHide) {
 
     if (NavToggle.firstChild.data == NavigationBarHide) {
         for (var NavChild = NavFrame.firstChild; NavChild != null; NavChild = NavChild.nextSibling) {
+
         for (
             if (hasClass(NavChild, 'NavContent') || hasClass(NavChild, 'NavPic')) {
+
                var NavChild = NavFrame.firstChild;
 +
                NavChild != null;
 +
                NavChild = NavChild.nextSibling
 +
            ) {
 +
             if (NavChild.className == 'NavPic') {
 
                 NavChild.style.display = 'none';
 
                 NavChild.style.display = 'none';
 +
            }
 +
            if (NavChild.className == 'NavContent') {
 +
                NavChild.style.display = 'none';
 +
            }
 +
            if (NavChild.className == 'NavToggle') {
 +
                NavChild.firstChild.data = NavigationBarShow;
 
             }
 
             }
 
         }
 
         }
    NavToggle.firstChild.data = NavigationBarShow;
 
 
   
 
   
 
     // if hidden now
 
     // if hidden now
 
     } else if (NavToggle.firstChild.data == NavigationBarShow) {
 
     } else if (NavToggle.firstChild.data == NavigationBarShow) {
         for (var NavChild = NavFrame.firstChild; NavChild != null; NavChild = NavChild.nextSibling) {
+
         for (
             if (hasClass(NavChild, 'NavContent') || hasClass(NavChild, 'NavPic')) {
+
                var NavChild = NavFrame.firstChild;
 +
                NavChild != null;
 +
                NavChild = NavChild.nextSibling
 +
            ) {
 +
             if (NavChild.className == 'NavPic') {
 
                 NavChild.style.display = 'block';
 
                 NavChild.style.display = 'block';
 +
            }
 +
            if (NavChild.className == 'NavContent') {
 +
                NavChild.style.display = 'block';
 +
            }
 +
            if (NavChild.className == 'NavToggle') {
 +
                NavChild.firstChild.data = NavigationBarHide;
 
             }
 
             }
 
         }
 
         }
        NavToggle.firstChild.data = NavigationBarHide;
 
 
     }
 
     }
}
+
}
 
   
 
   
// adds show/hide-button to navigation bars
+
// adds show/hide-button to navigation bars
function createNavigationBarToggleButton()
+
function createNavigationBarToggleButton()
{
+
{
 
     var indexNavigationBar = 0;
 
     var indexNavigationBar = 0;
     // iterate over all < div >-elements  
+
     // iterate over all < div >-elements
 
     var divs = document.getElementsByTagName("div");
 
     var divs = document.getElementsByTagName("div");
     for (var i = 0; NavFrame = divs[i]; i++) {
+
     for (var i=0; i<divs.length; i++) {
 +
        var NavFrame = divs[i];
 
         // if found a navigation bar
 
         // if found a navigation bar
         if (hasClass(NavFrame, "NavFrame")) {
+
         if (NavFrame.className == "NavFrame") {
 
   
 
   
 
             indexNavigationBar++;
 
             indexNavigationBar++;
Line 334: Line 102:
 
             NavToggle.setAttribute('href', 'javascript:toggleNavigationBar(' + indexNavigationBar + ');');
 
             NavToggle.setAttribute('href', 'javascript:toggleNavigationBar(' + indexNavigationBar + ');');
 
   
 
   
            var isCollapsed = hasClass( NavFrame, "collapsed" );
+
             var NavToggleText = document.createTextNode(NavigationBarHide);
            /*
+
            * Check if any children are already hidden.  This loop is here for backwards compatibility:
+
            * the old way of making NavFrames start out collapsed was to manually add style="display:none"
+
            * to all the NavPic/NavContent elements.  Since this was bad for accessibility (no way to make
+
            * the content visible without JavaScript support), the new recommended way is to add the class
+
            * "collapsed" to the NavFrame itself, just like with collapsible tables.
+
            */
+
            for (var NavChild = NavFrame.firstChild; NavChild != null && !isCollapsed; NavChild = NavChild.nextSibling) {
+
                if ( hasClass( NavChild, 'NavPic' ) || hasClass( NavChild, 'NavContent' ) ) {
+
                    if ( NavChild.style.display == 'none' ) {
+
                        isCollapsed = true;
+
                    }
+
                }
+
            }
+
            if (isCollapsed) {
+
                for (var NavChild = NavFrame.firstChild; NavChild != null; NavChild = NavChild.nextSibling) {
+
                    if ( hasClass( NavChild, 'NavPic' ) || hasClass( NavChild, 'NavContent' ) ) {
+
                        NavChild.style.display = 'none';
+
                    }
+
                }
+
            }
+
             var NavToggleText = document.createTextNode(isCollapsed ? NavigationBarShow : NavigationBarHide);
+
 
             NavToggle.appendChild(NavToggleText);
 
             NavToggle.appendChild(NavToggleText);
 
   
 
   
             // Find the NavHead and attach the toggle link (Must be this complicated because Moz's firstChild handling is borked)
+
             // add NavToggle-Button as first div-element
             for(var j=0; j < NavFrame.childNodes.length; j++) {
+
             // in < div class="NavFrame" >
                 if (hasClass(NavFrame.childNodes[j], "NavHead")) {
+
            NavFrame.insertBefore(
                    NavToggle.style.color = NavFrame.childNodes[j].style.color;
+
                 NavToggle,
                    NavFrame.childNodes[j].appendChild(NavToggle);
+
                NavFrame.firstChild
                }
+
            );
            }
+
 
             NavFrame.setAttribute('id', 'NavFrame' + indexNavigationBar);
 
             NavFrame.setAttribute('id', 'NavFrame' + indexNavigationBar);
 
         }
 
         }
 
     }
 
     }
}
+
    // if more Navigation Bars found than Default: hide all
+
     if (NavigationBarShowDefault < indexNavigationBar) {
addOnloadHook( createNavigationBarToggleButton );
+
         for(
+
                var i=1;
+
                i<=indexNavigationBar;
/** Main Page layout fixes *********************************************************
+
                i++
*
+
         ) {
*  Description: Adds an additional link to the complete list of languages available.
+
             toggleNavigationBar(i);
*  Maintainers: [[User:AzaToth]], [[User:R. Koot]], [[User:Alex Smotrov]]
+
*/
+
+
if (wgPageName == 'Main_Page' || wgPageName == 'Talk:Main_Page')
+
     addOnloadHook(function () {
+
         addPortletLink('p-lang', 'http://meta.wikimedia.org/wiki/List_of_Wikipedias',
+
                'Complete list', 'interwiki-completelist', 'Complete list of Wikipedias')
+
        var nstab = document.getElementById('ca-nstab-main')
+
         if (nstab && wgUserLanguage=='en') {
+
             while (nstab.firstChild) nstab = nstab.firstChild
+
            nstab.nodeValue = 'Main Page'
+
 
         }
 
         }
 
     }
 
     }
)
 
 
 
/** Table sorting fixes ************************************************
 
  *
 
  *  Description: Disables code in table sorting routine to set classes on even/odd rows
 
  *  Maintainers: [[User:Random832]]
 
  */
 
 
ts_alternate_row_colors = false;
 
 
 
/***** uploadwizard_newusers ********
 
* Switches in a message for non-autoconfirmed users at [[Wikipedia:Upload]]
 
*
 
*  Maintainers: [[User:Krimpet]]
 
****/
 
function uploadwizard_newusers() {
 
  if (wgNamespaceNumber == 4 && wgTitle == "Upload" && wgAction == "view") {
 
    var oldDiv = document.getElementById("autoconfirmedusers"),
 
        newDiv = document.getElementById("newusers");
 
    if (oldDiv && newDiv) {
 
      if (typeof wgUserGroups == "object" && wgUserGroups) {
 
        for (i = 0; i < wgUserGroups.length; i++) {
 
          if (wgUserGroups[i] == "autoconfirmed") {
 
            oldDiv.style.display = "block";
 
            newDiv.style.display = "none";
 
            return;
 
          }
 
        }
 
      }
 
      oldDiv.style.display = "none";
 
      newDiv.style.display = "block";
 
      return;
 
    }
 
  }
 
}
 
addOnloadHook(uploadwizard_newusers);
 
 
 
/** IPv6 AAAA connectivity testing **/
 
 
var __ipv6wwwtest_factor = 100;
 
var __ipv6wwwtest_done = 0;
 
if ((wgServer != "https://secure.wikimedia.org") && (Math.floor(Math.random()*__ipv6wwwtest_factor)==42)) {
 
    importScript("MediaWiki:Common.js/IPv6.js");
 
}
 
 
/** Magic editintros ****************************************************
 
*
 
*  Description: Adds editintros on disambiguation pages and BLP pages.
 
*  Maintainers: [[User:RockMFR]]
 
*/
 
 
function addEditIntro(name)
 
{
 
  var el = document.getElementById('ca-edit');
 
  if (!el)
 
    return;
 
  el = el.getElementsByTagName('a')[0];
 
  if (el)
 
    el.href += '&editintro=' + name;
 
}
 
 
 
if (wgNamespaceNumber == 0) {
 
  addOnloadHook(function(){
 
    if (document.getElementById('disambigbox'))
 
      addEditIntro('Template:Disambig_editintro');
 
  });
 
 
  addOnloadHook(function(){
 
    var cats = document.getElementById('mw-normal-catlinks');
 
    if (!cats)
 
      return;
 
    cats = cats.getElementsByTagName('a');
 
    for (var i = 0; i < cats.length; i++) {
 
      if (cats[i].title == 'Category:Living people' || cats[i].title == 'Category:Possibly living people') {
 
        addEditIntro('Template:BLP_editintro');
 
        break;
 
      }
 
    }
 
  });
 
}
 
 
/*
 
* Description: Stay on the secure server as much as possible
 
* Maintainers: [[User:TheDJ]]
 
*/
 
if(wgServer == 'https://secure.wikimedia.org') {
 
    importScript( 'MediaWiki:Common.js/secure.js');
 
}
 
 
   
 
   
// Define ta for now. Bugzilla 23175
+
}
window.ta = [];
+
 
   
 
   
//</source>
+
addOnloadHook(createNavigationBarToggleButton);

Latest revision as of 21:20, 8 September 2010

// ============================================================
 // BEGIN Enable multiple onload functions
 
 // setup onload functions this way:
 // aOnloadFunctions[aOnloadFunctions.length] = function_name; // without brackets!
 
 if (!window.aOnloadFunctions) {
   var aOnloadFunctions = new Array();
 }
 
 window.onload = function() {
   if (window.aOnloadFunctions) {
     for (var _i=0; _i<aOnloadFunctions.length; _i++) {
       aOnloadFunctions[_i]();
     }
   }
 }
 
 // END Enable multiple onload functions
 // ============================================================

 //================================================================================
 //*** Dynamic Navigation Bars
 
 // set up the words in your language
 var NavigationBarHide = '[hide]';
 var NavigationBarShow = '[show]';
 
 // set up max count of Navigation Bars on page,
 // if there are more, all will be hidden
 // NavigationBarShowDefault = 0; // all bars will be hidden
 // NavigationBarShowDefault = 1; // on pages with more than 1 bar all bars will be hidden
 if (typeof NavigationBarShowDefault == 'undefined' ) {
     var NavigationBarShowDefault = 0;
 }
 
 // shows and hides content and picture (if available) of navigation bars
 // Parameters:
 //     indexNavigationBar: the index of navigation bar to be toggled
 function toggleNavigationBar(indexNavigationBar)
 {
    var NavToggle = document.getElementById("NavToggle" + indexNavigationBar);
    var NavFrame = document.getElementById("NavFrame" + indexNavigationBar);
 
    if (!NavFrame || !NavToggle) {
        return false;
    }
 
    // if shown now
    if (NavToggle.firstChild.data == NavigationBarHide) {
        for (
                var NavChild = NavFrame.firstChild;
                NavChild != null;
                NavChild = NavChild.nextSibling
            ) {
            if (NavChild.className == 'NavPic') {
                NavChild.style.display = 'none';
            }
            if (NavChild.className == 'NavContent') {
                NavChild.style.display = 'none';
            }
            if (NavChild.className == 'NavToggle') {
                NavChild.firstChild.data = NavigationBarShow;
            }
        }
 
    // if hidden now
    } else if (NavToggle.firstChild.data == NavigationBarShow) {
        for (
                var NavChild = NavFrame.firstChild;
                NavChild != null;
                NavChild = NavChild.nextSibling
            ) {
            if (NavChild.className == 'NavPic') {
                NavChild.style.display = 'block';
            }
            if (NavChild.className == 'NavContent') {
                NavChild.style.display = 'block';
            }
            if (NavChild.className == 'NavToggle') {
                NavChild.firstChild.data = NavigationBarHide;
            }
        }
    }
 }
 
 // adds show/hide-button to navigation bars
 function createNavigationBarToggleButton()
 {
    var indexNavigationBar = 0;
    // iterate over all < div >-elements
    var divs = document.getElementsByTagName("div");
    for (var i=0;  i<divs.length; i++) {
        var NavFrame = divs[i];
        // if found a navigation bar
        if (NavFrame.className == "NavFrame") {
 
            indexNavigationBar++;
            var NavToggle = document.createElement("a");
            NavToggle.className = 'NavToggle';
            NavToggle.setAttribute('id', 'NavToggle' + indexNavigationBar);
            NavToggle.setAttribute('href', 'javascript:toggleNavigationBar(' + indexNavigationBar + ');');
 
            var NavToggleText = document.createTextNode(NavigationBarHide);
            NavToggle.appendChild(NavToggleText);
 
            // add NavToggle-Button as first div-element 
            // in < div class="NavFrame" >
            NavFrame.insertBefore(
                NavToggle,
                NavFrame.firstChild
            );
            NavFrame.setAttribute('id', 'NavFrame' + indexNavigationBar);
        }
    }
    // if more Navigation Bars found than Default: hide all
    if (NavigationBarShowDefault < indexNavigationBar) {
        for(
                var i=1; 
                i<=indexNavigationBar; 
                i++
        ) {
            toggleNavigationBar(i);
        }
    }
 
 }
 
 addOnloadHook(createNavigationBarToggleButton);