detect whether you are new to a page

prompt for your name and create a column for your username
prompt before deleting columns as well
style a few elements differently

www/poll/index.html

@@ -62,7 +62,7 @@
             <thead>
                 <tr>
                     <td>
-                        <div id="adduser" class="clickable" title="click to add a user">+ Users</div>
+                        <div id="adduser"></div>
                     </td>
                 </tr>
             </thead>