if (gEdit == null) {

    gEdit = {

        'ids':{

          'formId':CY.guid(),

          'formTitleId':CY.guid(),

          'nameInputId':CY.guid(),

          'emailInputId':CY.guid(),

          'titleInputId':CY.guid(),

          'contentInputId':CY.guid(),

          'tagsInputId':CY.guid(),

          'formatInputId':CY.guid(),

          'startWrapperInputId':CY.guid(),

          'endWrapperInputId':CY.guid(),

          'startOffsetInputId':CY.guid(),

          'endOffsetInputId':CY.guid(),

          'changeScopeInputId':CY.guid(),

          'changeScopeInputWrapper':CY.guid(),

          'selectionPlaceId':CY.guid(),

          'keyId':CY.guid(),

          'editCommentId':CY.guid(),

          'currentSelId':CY.guid(),

          'currentSelIdI':CY.guid(),

          'addBtnId':CY.guid(),

          'cancelBtnId':CY.guid()

          },

        'handlers':{}

    } ;

  }

  gEditICommentHost = iCommentHost ;

  gEditICommentHost.hideContent() ;

// FORM HTML  

  var overlayHtml = getHtml(gEdit['ids']) ;

  var editHeader = '<div class="icomment-edit-header">' + overlayHtml['headerContent'] + '</div>' ;

  var editBody = '<div class="icomment-edit-body">' + overlayHtml['bodyContent'] + '</div>' ;

//  cf. http://yuilibrary.com/projects/yui3/ticket/2528319 

  gEditICommentHost['overlay'].setStdModContent(CY.WidgetStdMod.HEADER,CY.Node.create(editHeader),CY.WidgetStdMod.AFTER);   

  gEditICommentHost['overlay'].setStdModContent(CY.WidgetStdMod.BODY,CY.Node.create(editBody),CY.WidgetStdMod.AFTER);

// FORM TITLE   

  CY.get("#"+gEdit['ids']['formTitleId']).set('innerHTML', gettext("Edit comment")) ;

  var comment = gDb.getComment(gEditICommentHost.commentId) ;

  CY.get("#"+gEdit['ids']['editCommentId']).set('value', comment.id) ;

  CY.get("#"+gEdit['ids']['keyId']).set('value', comment.key) ;

  CY.get("#"+gEdit['ids']['changeScopeInputId']+" input").set('checked', false) ;

  if (comment.reply_to_id != null) 

    CY.get("#"+gEdit['ids']['changeScopeInputId']).addClass('displaynone')

  changeScopeFormClick() ; // to adapt

  CY.get("#"+gEdit['ids']['nameInputId']).set('value', comment.name) ; 

  CY.get("#"+gEdit['ids']['emailInputId']).set('value', comment.email) ; 

  if (comment.logged_author) {

    CY.get("#"+gEdit['ids']['nameInputId']).setAttribute("disabled", true); 

    CY.get("#"+gEdit['ids']['emailInputId']).setAttribute("disabled", true);

  }

  CY.get("#"+gEdit['ids']['titleInputId']).set('value', comment['title']) ;

  CY.get("#"+gEdit['ids']['contentInputId']).set('value', comment['content']) ;

  CY.get("#"+gEdit['ids']['tagsInputId']).set('value', comment['tags']) ;

  CY.get("#"+gEdit['ids']['formatInputId']).set('value',gConf['defaultCommentFormat']) ;// for now ...

// WIDTH  

  var width = gLayout.getTopICommentsWidth() ;

  changeFormFieldsWidth(gEdit['ids']['formId'], width) ;

  gEdit['handlers']['addBtnId'] = CY.on("click", onEditSaveClick, "#"+gEdit['ids']['addBtnId']);

  gEdit['handlers']['cancelBtnId'] = CY.on("click", onEditCancelClick, "#"+gEdit['ids']['cancelBtnId']);

  gEdit['handlers']['changeScope'] = CY.on("click", onChangeScopeClick, "#"+gEdit['ids']['changeScopeInputId']);

  if (readyForAction())

    gSync.editComment() ;

  if (readyForAction())

    gSync.cancelEdit() ;

  if (readyForAction())

    gSync.changeScopeFormClick() ;

  else {// (onChangeScopeClick triggers an animation : checking for readyForAction does not prevent the checkbox change ...)

    var chckCtrl = CY.get("#"+gEdit['ids']['changeScopeInputId']+" input") ;

    var chck = chckCtrl.get('checked') ;

    chckCtrl.set('checked', !chck) ; // set it back 

  }

  var node = CY.get("#"+gEdit['ids']['currentSelId']) ;

  if (CY.get("#"+gEdit['ids']['changeScopeInputId']+" input").get('checked'))

    node.removeClass('displaynone') ;

  else

    node.addClass('displaynone') ;

  if (gEditICommentHost != null) {

    for (var id in gEdit['handlers']) {

      if (gEdit['handlers'][id] != null) {

        gEdit['handlers'][id].detach() ;

        gEdit['handlers'][id] = null ;

      }

    }

    var node = gEditICommentHost['overlay'].get('contentBox').query(".icomment-edit-body") ;

    node.get('parentNode').removeChild(node) ;

    node = gEditICommentHost['overlay'].get('contentBox').query(".icomment-edit-header") ;

    node.get('parentNode').removeChild(node) ;

    gEditICommentHost.showContent() ;

    gEditICommentHost = null ;

  }