index.html.erb

<%= form_tag offers_path, :method => :get, :class => "form-inline form-search" do %>
<fieldset>
  <legend>Search Options</legend>
  <label class="control-label" for="trip_type">Trip type: </label>
  <select name="trip_type" class="input-small">
    <option value="">Any</option>
    <option value="single">Single</option>
    <option value="multiple">Multiple</option>
  </select>
  <label class="control-label" for="nearby_radius">Within </label>
  <select name="nearby_radius">
    <option value="5">5</option>
    <option value="10">10</option>
    <option value="25">25</option>
    <option value="50">50</option>
    <option value="100">100</option>
  </select>
  <label class="control-label" for="nearby_location">miles of</label>
  <input type="text" placeholder="zipcode or address" name="nearby_location" class="input-medium search-query">
  <button type="button" class="btn btn-primary">Search</button>
</fieldset>
<% end %>