app/views/livesearch_sidebar/_content.html.erb
<h3 class="sidebar-title">
<label for="q"><%= sidebar.title %></label>
</h3>
<div class="sidebar-body">
<%= form_tag({ controller: 'articles', action: 'search' }, { method: 'get', id: 'sform' }) do %>
<%= text_field_tag :q, '',
id: 'live_search', size: 15, autocomplete: 'off', class: 'observable',
data: { url: live_search_articles_url, target: '#search-results', spinner: '#search_spinner' } %>
<%= image_tag 'spinner-blue.gif', id: 'search_spinner', style: 'display:none;' %>
<% end %>
<div id="search-results" class="results"></div>
</div>