Is it possible to call a different static sidebar on different pages?

I've created two staticsidebar ex. sidebar1 and sidebar2 but it always call sidebar2

<% if InSection(page1) %>
      <div class="project">
         $StaticSidebar(sidebar1).Content
      </div>
<% end_if %>
<% if InSection(page2) %>
      <div class="
         $StaticSidebar(sidebar2).Content
      </div>
<% end_if %>

Thanks in advanced.