update to new structure, add side

Author: floesche

index.html

@@ -24,6 +24,12 @@
           <option value="">Choose cell type</option>
         </select>
       </div>
+      <div class="selector">
+        <label for="viewerA-hemisphere-select">Hemisphere A</label>
+        <select id="viewerA-hemisphere-select" class="pm-input" disabled>
+          <option value="">Choose hemisphere</option>
+        </select>
+      </div>
       <div class="selector">
         <label for="viewerB-dataset-select">Dataset B</label>
         <select id="viewerB-dataset-select" class="pm-input" disabled>
@@ -36,6 +42,12 @@
           <option value="">Choose cell type</option>
         </select>
       </div>
+      <div class="selector">
+        <label for="viewerB-hemisphere-select">Hemisphere B</label>
+        <select id="viewerB-hemisphere-select" class="pm-input" disabled>
+          <option value="">Choose hemisphere</option>
+        </select>
+      </div>
     </div>
   </header>