nl_tokens: abstract
pl_tokens: function ( delta ) { var choices = this . findHighlightableChoices ( ) , index = this . highlight ( ) ; while ( index > - 1 && index < choices . length ) { index += delta ; var choice = $ ( choices [ index ] ) ; if ( choice . hasClass ( "select2-result-selectable" ) && ! choice . hasClass ( "select2-disabled" ) && ! <mask> . hasClass ( "select2-selected" ) ) { this . highlight ( index ) ; break ; } } }