                     if prevUrl?
                         div className: 'btn-group btn-group-sm',
                             button
-                                className: 'btn btn-default',
+                                className: 'btn btn-default prev',
                                 type: 'button',
                                 onClick: displayPrev,
                                     a href: prevUrl,


    renderNavigation: ->

        if @props.prevID?
            prevUrl = @buildUrl
                direction: 'second'
                action: 'message'
                parameters: @props.prevID
            displayPrev = =>
                @displayNextMessage @props.prevID
        if @props.nextID?
            nextUrl = @buildUrl
                direction: 'second'
                action: 'message'
                parameters: @props.nextID
            displayNext = =>
                @displayNextMessage @props.nextID

        div className: 'messageNavigation row',
            div className: 'btn-toolbar', role: 'toolbar',

                    if nextUrl?
                        div className: 'btn-group btn-group-sm',
                            button
                                className: 'btn btn-default next',
                                type: 'button',
                                onClick: displayNext,
                                    a href: nextUrl,
