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              <button id="scrollVertical" class="secondaryToolbarButton toggled" title="Use Vertical Scrolling" tabindex="63" data-l10n-id="pdfjs-scroll-vertical-button" role="radio" aria-checked="true">
                <span data-l10n-id="pdfjs-scroll-vertical-button-label" >Vertical Scrolling</span>
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              <button id="scrollHorizontal" class="secondaryToolbarButton" title="Use Horizontal Scrolling" tabindex="64" data-l10n-id="pdfjs-scroll-horizontal-button" r