Focus Next Element In Tab Index

Question

I am trying to move the focus to the next element in the tab sequence based upon the current element which has focus  Thus far I have not turned up anything in my searches   function OnFocusOut         var currentElement    get currentElementId      ID set by OnFocusIn       currentElementId           currentElement nextElementByTabIndex focus        Of course the nextElementByTabIndex is the key part for this to work  How do I find the next element in the tab sequence  The solution would need to be based using JScript and not something like JQuery

User · Answer

Tabbable is a small JS package that gives you a list of all tabbable elements in tab order. So you could find your element within that list, then focus on the next list entry.

The package correctly handles the complicated edge cases mentioned in other answers (e.g., no ancestor can be display: none). And it doesn't depend on jQuery!

As of this writing (version 1.1.1), it has the caveats that it doesn't support IE8, and that browser bugs prevent it from handling contenteditable correctly.

User · Answer

Here is a more complete version of focusing on the next element  It follows the spec guidelines and sorts the list of elements correctly by using tabindex  Also a reverse variable is defined if you want to get the previous element    function focusNextElement  reverse  activeElem         check if an element is defined or use activeElement     activeElem   activeElem instanceof HTMLElement   activeElem   document activeElement     let queryString            a not  disabled   not  tabindex  -1             button not  disabled   not  tabindex  -1             input not  disabled   not  tabindex  -1             select not  disabled   not  tabindex  -1              tabindex  not  disabled   not  tabindex  -1              add custom queries here          join           queryResult   Array prototype filter call document querySelectorAll queryString   elem   gt            check for visibility while always include the current activeElement         return elem offsetWidth  gt  0    elem offsetHeight  gt  0    elem     activeElem              indexedList   queryResult slice   filter elem   gt             filter out all indexes not greater than 0          return elem tabIndex    0    elem tabIndex    -1   false   true         sort  a  b    gt             sort the array by index from smallest to largest          return a tabIndex    0  amp  amp  b tabIndex    0             a tabIndex  lt  b tabIndex   -1   b tabIndex  lt  a tabIndex   1   0             a tabIndex    0   -1   b tabIndex    0   1   0              focusable      concat indexedList  queryResult filter elem   gt             filter out all indexes above 0          return elem tabIndex    0    elem tabIndex    -1   true   false                 if reverse is true return the previous focusable element      if reverse is false return the next focusable element      return reverse    focusable focusable indexOf activeElem  - 1     focusable focusable length - 1           focusable focusable indexOf activeElem    1     focusable 0

User · Answer

function focusNextElement      var focusable      slice call document querySelectorAll  a  button  input  select  textarea   tabindex    contenteditable     filter function  e       if  e disabled      e getAttribute  tabindex    amp  amp  parseInt  e getAttribute  tabindex    lt 0   return false      return true       sort function  a   b       return  parseFloat  a getAttribute  tabindex      99999     99999  -  parseFloat  b getAttribute  tabindex      99999     99999           var focusIndex   focusable indexOf document activeElement     if focusable focusIndex 1   focusable focusIndex 1  focus

User · Answer

I created a simple jQuery plugin which does just this  It uses the   tabbable  selector of jQuery UI to find the next  tabbable  element and selects it   Example usage      Simulate tab key when element is clicked      myElement   bind  click   function event         tabNext        return false

User · Answer

i use this code  which relies on the library  quot JQuery quot         document  on  change    select   function          let next select     this      console log next select toArray        if   next select parent   parent   next   find  select   length            next select parent   parent   parent   next   find  input type  quot text quot     click           console log next select parent   parent   parent   next           else if  next select parent   parent   next   find  select   prop  quot disabled quot              setTimeout function                  next select parent   parent   next   find  select   select2  open              1000          console log  b          else if  next select parent   parent   next   find  select   length            next select parent   parent   next   find  select   select2  open           console log  c

User · Answer

Here s something I build for this purpose   focusNextElement  function            add all elements we want to include in our selection     var focussableElements    a not  disabled    button not  disabled    input type text  not  disabled     tabindex  not  disabled   not  tabindex  -1          if  document activeElement  amp  amp  document activeElement form            var focussable   Array prototype filter call document activeElement form querySelectorAll focussableElements           function  element                  check for visibility while always include the current activeElement              return element offsetWidth  gt  0    element offsetHeight  gt  0    element     document activeElement                     var index   focussable indexOf document activeElement           if index  gt  -1               var nextElement   focussable index   1     focussable 0              nextElement focus                                            Features    configurable set of focusable elements no jQuery needed works in all modern browsers fast  amp  lightweight

User · Answer

It seems that you can check the tabIndex property of an element to determine if it is focusable  An element that is not focusable has a tabindex of  -1    Then you just need to know the rules for tab stops    tabIndex  1  has the highest priorty  tabIndex  2  has the next highest priority  tabIndex  3  is next  and so on  tabIndex  0   or tabbable by default  has the lowest priority  tabIndex  -1   or not tabbable by default  does not act as a tab stop  For two elements that have the same tabIndex  the one that appears first in the DOM has the higher priority    Here is an example of how to build the list of tab stops  in sequence  using pure Javascript   function getTabStops o  a  el           Check if this element is a tab stop     if  el tabIndex  gt  0            if  o el tabIndex                 o el tabIndex  push el             else               o el tabIndex     el                   else if  el tabIndex     0               Tab index  0  comes last so we accumulate it seperately         a push el                Check if children are tab stops     for  var i   0  l   el children length  i  lt  l  i              getTabStops o  a  el children i             var o           a           stops           active   document activeElement   getTabStops o  a  document body       Use simple loops for maximum browser support for  var i   0  l   o length  i  lt  l  i          if  o i             for  var j   0  m   o i  length  j  lt  m  j                  stops push o i  j                      for  var i   0  l   a length  i  lt  l  i          stops push a i        We first walk the DOM  collecting up all tab stops in sequence with their index  We then assemble the final list  Notice that we add the items with tabIndex  0  at the very end of the list  after the items with a tabIndex of 1  2  3  etc   For a fully working example  where you can tab around using the  enter  key  check out this fiddle

User · Answer

I ve never implemented this  but I ve looked into a similar problem  and here s what I would try   Try this first  First  I would see if you could simply fire a keypress event for the Tab key on the element that currently has focus  There may be a different way of doing this for different browsers   If that doesn t work  you ll have to work harder     Referencing the jQuery implementation  you must    Listen for Tab and Shift Tab Know which elements are tab-able Understand how tab order works   1  Listen for Tab and Shift Tab  Listening for Tab and Shift Tab are probably well-covered elsewhere on the web  so I ll skip that part   2  Know which elements are tab-able  Knowing which elements are tab-able is trickier  Basically  an element is tab-able if it is focusable and does not have the attribute tabindex  -1  set  So then we must ask which elements are focusable  The following elements are focusable    input  select  textarea  button  and object elements that aren t disabled  a and area elements that have an href or have a numerical value for tabindex set  any element that has a numerical value for tabindex set    Furthermore  an element is focusable only if    None of its ancestors are display  none  The computed value of visibility is visible  This means that the nearest ancestor to have visibility set must have a value of visible  If no ancestor has visibility set  then the computed value is visible    More details are in another Stack Overflow answer    3  Understand how tab order works  The tab order of elements in a document is controlled by the tabindex attribute  If no value is set  the tabindex is effectively 0   The tabindex order for the document is  1  2  3       0   Initially  when the body element  or no element  has focus  the first element in the tab order is the lowest non-zero tabindex  If multiple elements have the same tabindex  you then go in document order until you reach the last element with that tabindex  Then you move to the next lowest tabindex and the process continues  Finally  finish with those elements with a zero  or empty  tabindex

User · Answer

As mentioned in a comment above  I don t think that any browsers expose tab order information  Here a simplified approximation of what the browser does to get the next element in tab order   var allowedTags    input  true  textarea  true  button  true    var walker   document createTreeWalker    document body    NodeFilter SHOW ELEMENT          acceptNode  function node              if  node localName in allowedTags          return NodeFilter FILTER ACCEPT        else         NodeFilter FILTER SKIP               false    walker currentNode   currentElement  if   walker nextNode           Restart search from the start of the document   walker currentNode   walker root    walker nextNode      if  walker currentNode  amp  amp  walker currentNode    walker root    walker currentNode focus      This only considers some tags and ignores tabindex attribute but might be enough depending on what you are trying to achieve

User · Answer

A word of advice  Don   t try to control where the focus lands during a tab event  Instead try to control which element are and aren   t tabbable by setting the tabIndex of the elements you don   t want to receive focus to -1  E g      tabContainer  is a container where we want only    element at a time to be tabbable  e g  a radio menu   tabContainer addEventListener  quot focusin quot        gt      const desired   findDesiredFocusElement       if   desired           Just leave the focus be  We have no preference        at the moment      return            Move the focus to the correct element    desired focus          Remove all undesired elements from the tab order    for  const undesired of findUndesiredFocusElements             Make it untabbable      undesired tabIndex   -1           tabContainer addEventListener  quot focusout quot    event    gt      for  const element of findRelevantFocusElements             Give each element back their focus capability      element tabIndex   0           Note  This might not be what is best in your situation  e g  in your case it might be better to control the tab index in some change events or not to reset the tabIndex state on focusout etc  More info here

User · Answer

refer this pure js npm library for such tab navigation strategies  keyboard-navigator this small library handles tab key arrow key navigation retaining focus on dom updates modal focus trap  fallback focus

User · Answer

This is a potential enhancement to the great solution that   Kano and  Mx offered  If you want to preserve TabIndex ordering  add this sort in the middle      Sort by explicit Tab Index  if any var sort by TabIndex   function  elementA  elementB        let a   elementA tabIndex    1      let b   elementB tabIndex    1      if  a  lt  b    return -1        if  a  gt  b    return 1        return 0    focussable sort sort by TabIndex

User · Answer

I have a buch of 0-tabIndexes  which I wanted to navigate by keyboard   Since in that case  only the ORDER of the elements mattered  I did it using document createTreeWalker So first you create the filter  you only want  visible  elements  which have an attribute  quot tabIndex quot  with a NUMERICAL value  Then you set the root node  beyond which you don t want to search  In my case  this m tree is a ul-element containing a toggable tree  If you want the entire document instead  just replace this m tree with document documentElement  Then you set the current node to the current active element  ni currentNode   el     el   document activeElement  Then you return ni nextNode   or ni previousNode    Note   this will NOT return the tabs in the correct order if you have tabIndices    0 and the element order is NOT the tabIndex order  In case of tabIndex   0  the tabOrder is always the element order  which is why this works  in that case   protected createFilter fn    node  Node    gt  number   NodeFilter          Accept all currently filtered elements      function acceptNode node  Node   number                return NodeFilter FILTER ACCEPT             if  fn    null          fn   acceptNode           Work around Internet Explorer wanting a function instead of an object         IE also  requires  this argument where other browsers don t      const safeFilter  NodeFilter    lt NodeFilter gt  lt any gt fn        lt any gt safeFilter  acceptNode   fn       return safeFilter       protected createTabbingFilter    NodeFilter          Accept all currently filtered elements      function acceptNode node  Node   number                if   node              return NodeFilter FILTER REJECT           if  node nodeType     Node ELEMENT NODE              return NodeFilter FILTER REJECT           if  window getComputedStyle  lt Element gt node  display      quot none quot               return NodeFilter FILTER REJECT               quot tabIndex quot    quot 0 quot          if     lt Element gt node  hasAttribute  quot tabIndex quot                return NodeFilter FILTER SKIP           let tabIndex   parseInt   lt Element gt node  getAttribute  quot tabIndex quot    10           if   tabIndex    isNaN tabIndex      isFinite tabIndex               return NodeFilter FILTER SKIP              if    lt Element gt node  tagName      quot LI quot   return NodeFilter FILTER SKIP           return NodeFilter FILTER ACCEPT             return this createFilter acceptNode       protected getNextTab el  HTMLElement   HTMLElement       let currentNode  Node         https   developer mozilla org en-US docs Web API Document createNodeIterator        https   developer mozilla org en-US docs Web API Document createTreeWalker         let ni   document createNodeIterator el  NodeFilter SHOW ELEMENT          let ni   document createTreeWalker this m tree  NodeFilter SHOW ELEMENT       let ni   document createTreeWalker this m tree  NodeFilter SHOW ELEMENT  this createTabbingFilter    false        ni currentNode   el       while  currentNode   ni nextNode                  return  lt HTMLElement gt currentNode             return el      protected getPreviousTab el  HTMLElement   HTMLElement       let currentNode  Node      let ni   document createTreeWalker this m tree  NodeFilter SHOW ELEMENT  this createTabbingFilter    false       ni currentNode   el       while  currentNode   ni previousNode                  return  lt HTMLElement gt currentNode             return el     Note that the while-loop while  currentNode   ni nextNode             Additional checks here        if condition  return currentNode         else the loop continues      return  lt HTMLElement gt currentNode     everything is already filtered down to what we need here    is only there if you want if you have additional criterias which you cannot filter in the filter passed to createTreeWalker  Note this is TypeScript  you need to remove all tokens behind colons      and between angle-brackets   lt  gt    e g   lt Element gt  or   node  Node    gt  number to get valid JavaScript  Here as a service  the transpiled JS   quot use strict quot   function createFilter fn           Accept all currently filtered elements      function acceptNode node            return NodeFilter FILTER ACCEPT            if  fn    null          fn   acceptNode         Work around Internet Explorer wanting a function instead of an object         IE also  requires  this argument where other browsers don t      const safeFilter   fn      safeFilter acceptNode   fn      return safeFilter    function createTabbingFilter            Accept all currently filtered elements      function acceptNode node            if   node              return NodeFilter FILTER REJECT          if  node nodeType     Node ELEMENT NODE              return NodeFilter FILTER REJECT          if  window getComputedStyle node  display      quot none quot               return NodeFilter FILTER REJECT              quot tabIndex quot    quot 0 quot          if   node hasAttribute  quot tabIndex quot                return NodeFilter FILTER SKIP          let tabIndex   parseInt node getAttribute  quot tabIndex quot    10           if   tabIndex    isNaN tabIndex      isFinite tabIndex               return NodeFilter FILTER SKIP             if    lt Element gt node  tagName      quot LI quot   return NodeFilter FILTER SKIP          return NodeFilter FILTER ACCEPT            return createFilter acceptNode     function getNextTab el        let currentNode         https   developer mozilla org en-US docs Web API Document createNodeIterator        https   developer mozilla org en-US docs Web API Document createTreeWalker        let ni   document createNodeIterator el  NodeFilter SHOW ELEMENT          let ni   document createTreeWalker this m tree  NodeFilter SHOW ELEMENT       let ni   document createTreeWalker document documentElement  NodeFilter SHOW ELEMENT  createTabbingFilter    false       ni currentNode   el      while  currentNode   ni nextNode              return currentNode            return el    function getPreviousTab el        let currentNode      let ni   document createTreeWalker document documentElement  NodeFilter SHOW ELEMENT  createTabbingFilter    false       ni currentNode   el      while  currentNode   ni previousNode              return currentNode            return el

User · Answer

The core of the answer lies on finding the next element     function findNextTabStop el        var universe   document querySelectorAll  input  button  select  textarea  a href         var list   Array prototype filter call universe  function item   return item tabIndex  gt    0         var index   list indexOf el       return list index   1     list 0         Usage   var nextEl   findNextTabStop element   nextEl focus      Notice I don t care about prioritizing tabIndex

User · Answer

Did you specify your own tabIndex values for each element you want to cycle through  if so  you can try this   var lasTabIndex   10    Set this to the highest tabIndex you have function OnFocusOut         var currentElement    get currentElementId      ID set by OnFocusIn       var curIndex     currentElement  attr  tabindex      get the tab index of the current element     if curIndex    lastTabIndex      if we are on the last tabindex  go back to the beginning         curIndex   0                tabindex      curIndex   1         focus      set focus on the element that has a tab index one greater than the current tab index     You are using jquery  right

User · Answer

This is my first post on SO  so I don t have enough reputation to comment the accepted answer  but I had to modify the code to the following   export function focusNextElement          add all elements we want to include in our selection   const focussableElements         a not  disabled    button not  disabled    input type text  not  disabled      if  document activeElement  amp  amp  document activeElement form          var focussable   Array prototype filter call          document activeElement form querySelectorAll focussableElements         function  element                 if element has tabindex   -1  it is not focussable           if   element hasAttribute  tabindex    amp  amp  element tabIndex     -1                return false                         check for visibility while always include the current activeElement            return  element offsetWidth  gt  0    element offsetHeight  gt  0                 element     document activeElement                  console log focussable        var index   focussable indexOf document activeElement         if index  gt  -1             var nextElement   focussable index   1     focussable 0            console log nextElement           nextElement focus                                       The changing of var to constant is non-critical  The main change is that we get rid of the selector that checks tabindex     -1   Then later  if the element has the attribute tabindex AND it is set to  -1   we do NOT consider it focussable   The reason I needed to change this was because when adding tabindex  -1  to an  lt input gt   this element was still considered focussable because it matches the  input type text  not  disabled    selector  My change is equivalent to  if we are a non-disabled text input  and we have a tabIndex attribute  and the value of that attribute is -1  then we should not be considered focussable   I believe that when the author of the accepted answer edited their answer to account for the tabIndex attribute  they did not do so correctly  Please let me know if this is not the case

User · Answer

I checked above solutions and found them quite lengthy  It can be accomplished with just one line of code  currentElement nextElementSibling focus     or currentElement previousElementSibling focus     here currentElement may be any i e  document activeElement or this if current element is in function s context  I tracked tab and shift-tab events with keydown event Here is a snippet that relies on  quot JQuery quot   let cursorDirection        document  keydown function  e        let key   e which    e keyCode      if  e shiftKey              does not matter if user has pressed tab key or not            If it matters for you then compare it with 9         cursorDirection    prev             else if  key    9              if tab key is pressed then move next          cursorDirection    next             else           cursorDirection                   once you have cursor direction then you can use nextElementSibling focus or previousElementSibling focus methods

User · Answer

Without jquery  First of all  on your tab-able elements  add class  tabable  this will let us select them later   Do not forget the     class selector prefix in the code below   var lastTabIndex   10  function OnFocusOut         var currentElement    get currentElementId      ID set by OnFOcusIn     var curIndex   currentElement tabIndex    get current elements tab index     if curIndex    lastTabIndex      if we are on the last tabindex  go back to the beginning         curIndex   0            var tabbables   document querySelectorAll   tabable      get all tabable elements     for var i 0  i lt tabbables length  i        loop through each element         if tabbables i  tabIndex     curIndex 1       check the tabindex to see if it s the element we want             tabbables i  focus      if it s the one we want  focus it and exit the loop             break

User · Answer

There is the tabindex property that can be set on component  It specifies in which order the input components should be iterated when selecting one and pressing tab  Values above 0 are reserved for custom navigation  0 is  in natural order   so would behave differently if set for the first element   -1 means not keyboard focusable    lt  -- navigate with tab key  -- gt   lt input tabindex  1  type  text   gt   lt input tabindex  2  type  text   gt    It can also be set for something else than the text input fields but it is not very obvious what it would do there  if anything at all  Even if the navigation works  maybe better to use  natural order  for anything else than the very obvious user input elements   No  you do not need JQuery or any scripting at all to support this custom path of navigation  You can implement it on the server side without any JavaScript support  From the other side  the property also works fine in React framework but does not require it

User · Answer

If you use the library  quot JQuery quot   you can call this  Tab    tabNext     Shift Tab    tabPrev      x000D   x000D   lt  DOCTYPE html gt   lt html gt   lt body gt   lt script src  https   code jquery com jquery-3 3 1 js  integrity  sha256-2Kok7MbOyxpgUVvAk HJ2jigOSYS2auK4Pfzbm7uH60   crossorigin  anonymous  gt  lt  script gt   lt script gt   function          use strict                   Focusses the next  focusable element  Elements with tabindex -1 are focusable  but not tabable         Does not take into account that the taborder might be different as the  tabbable elements order         which happens when using tabindexes which are greater than 0                 focusNext   function            selectNextTabbableOrFocusable   focusable                           Focusses the previous  focusable element  Elements with tabindex -1 are focusable  but not tabable         Does not take into account that the taborder might be different as the  tabbable elements order         which happens when using tabindexes which are greater than 0                 focusPrev   function            selectPrevTabbableOrFocusable   focusable                           Focusses the next  tabable element         Does not take into account that the taborder might be different as the  tabbable elements order         which happens when using tabindexes which are greater than 0                 tabNext   function            selectNextTabbableOrFocusable   tabbable                           Focusses the previous  tabbable element        Does not take into account that the taborder might be different as the  tabbable elements order         which happens when using tabindexes which are greater than 0                 tabPrev   function            selectPrevTabbableOrFocusable   tabbable                function tabIndexToInt tabIndex           var tabIndexInded   parseInt tabIndex           if isNaN tabIndexInded                return 0           else              return tabIndexInded                       function getTabIndexList elements           var list               for var i 0  i lt elements length  i                 list push tabIndexToInt elements eq i  attr  tabIndex                        return list             function selectNextTabbableOrFocusable selector           var selectables     selector           var current       focus                Find same TabIndex of remainder element         var currentIndex   selectables index current           var currentTabIndex   tabIndexToInt current attr  tabIndex             for var i currentIndex 1  i lt selectables length  i                 if tabIndexToInt selectables eq i  attr  tabIndex        currentTabIndex                   selectables eq i  focus                    return                                      Check is last TabIndex         var tabIndexList   getTabIndexList selectables  sort function a  b  return a-b            if currentTabIndex     tabIndexList tabIndexList length-1                currentTabIndex   -1    Starting from 0                       Find next TabIndex of all element         var nextTabIndex   tabIndexList find function element  return currentTabIndex lt element             for var i 0  i lt selectables length  i                 if tabIndexToInt selectables eq i  attr  tabIndex        nextTabIndex                   selectables eq i  focus                    return                                     function selectPrevTabbableOrFocusable selector           var selectables     selector           var current       focus                Find same TabIndex of remainder element         var currentIndex   selectables index current           var currentTabIndex   tabIndexToInt current attr  tabIndex             for var i currentIndex-1  0 lt  i  i--               if tabIndexToInt selectables eq i  attr  tabIndex        currentTabIndex                   selectables eq i  focus                    return                                      Check is last TabIndex         var tabIndexList   getTabIndexList selectables  sort function a  b  return b-a            if currentTabIndex  lt   tabIndexList tabIndexList length-1                currentTabIndex   tabIndexList 0  1    Starting from max                       Find prev TabIndex of all element         var prevTabIndex   tabIndexList find function element  return element lt currentTabIndex             for var i selectables length-1  0 lt  i  i--               if tabIndexToInt selectables eq i  attr  tabIndex        prevTabIndex                   selectables eq i  focus                    return                                                 focusable and  tabbable  both taken from jQuery UI Core               extend   expr                   data    expr createPseudo                 expr createPseudo function dataName                   return function elem                       return     data elem  dataName                                                      support  jQuery  lt 1 8             function elem  i  match                   return     data elem  match  3                             focusable  function element               return focusable element   isNaN   attr element   tabindex                          tabbable  function element               var tabIndex     attr element   tabindex                    isTabIndexNaN   isNaN tabIndex               return   isTabIndexNaN    tabIndex  gt   0    amp  amp  focusable element   isTabIndexNaN                                     focussable function  taken from jQuery UI Core         param element         returns                 function focusable element           var map  mapName  img              nodeName   element nodeName toLowerCase                isTabIndexNotNaN    isNaN   attr element   tabindex             if  area      nodeName               map   element parentNode              mapName   map name              if  element href     mapName    map nodeName toLowerCase        map                    return false                            img      img usemap      mapName        0               return   img  amp  amp  visible img                     return      input select textarea button object    test nodeName                 element disabled                a      nodeName                   element href    isTabIndexNotNaN                   isTabIndexNotNaN   amp  amp                 the element and all of its ancestors must be visible             visible element            function visible element               return   expr filters visible element   amp  amp     element  parents   addBack   filter function                    return   css this   visibility        hidden                  length                     jQuery    lt  script gt    lt a tabindex  5  gt 5 lt  a gt  lt br gt   lt a tabindex  20  gt 20 lt  a gt  lt br gt   lt a tabindex  3  gt 3 lt  a gt  lt br gt   lt a tabindex  7  gt 7 lt  a gt  lt br gt   lt a tabindex  20  gt 20 lt  a gt  lt br gt   lt a tabindex  0  gt 0 lt  a gt  lt br gt    lt script gt  var timer  function tab        window clearTimeout timer      timer   window setInterval function     tabNext      1000     function shiftTab        window clearTimeout timer      timer   window setInterval function     tabPrev      1000      lt  script gt   lt button tabindex  -1  onclick  tab    gt Tab lt  button gt   lt button tabindex  -1  onclick  shiftTab    gt Shift Tab lt  button gt    lt  body gt   lt  html gt  x000D   x000D   x000D   I modify jquery tabbable PlugIn to complete

[javascript] Focus Next Element In Tab Index

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