def create
    @user_id = params[:user_id]
    @idea_id = params[:idea_id]

     if (Vote.find(:all, :conditions => {:user_id => @user_id, :idea_id => @idea.id}) .length > 0)
	render :text => "notwice"
	return
    end

    @vote = Vote.new(:user_id => @user_id, :idea_id => @idea_id)

		@vote_count =  Idea.find(@idea_id).vote_count.to_i + 1
		# @vote_count =  Idea.find(@idea_id).vote_count.to_i + (User.find(@user_id).ideas.vote_count )^1/2

		@idea_change = Idea.find(@idea_id).update_attribute(:vote_count, @vote_count)

    respond_to do |format|
      if @vote.save
        format.html { render :text => "true" }
        format.xml  { render :xml => @vote, :status => :created, :location => @vote }
      else
        format.html { render :text => "false" }
        format.xml  { render :xml => @vote.errors, :status => :unprocessable_entity }
      end
    end
  end