def list
    if request.post?
      @opportunities = Opportunity.find_by_contents(params[:q])

      unless params[:unapproved]
         @opportunities = @opportunities.select {|opportunity| opportunity.approved}
      end

      if @opportunities.length > 0
        @message = "Search results for '" + params[:q] + "'"
      else
        @message = "No search results were found for '" + params[:q] + "'"
        redirect_to :action => 'search'
      end
    end