anchor.diff:  
       if (r.practice_over && !window.practice_over) {
         window.practice_over = true;
  +      <% if $prod %>
         alert('Practice is over!');
  -    }
  +      <% end %>
  +    }
  +
  +
  +    //$('.not_your_turn').show()
         
       //var curTurn = (data.user_ids[data.turn % data.user_ids.length])
       var curTurn = data.cur_turn;
  
positive.code:   <% num_users = $prod ? 3 : 2 %>
    var numModUsers=<%= num_users %>;
    if (window.d.user_ids.length % numModUsers != 0 ) {
      return alert('There are currently '+window.d.user_ids.length+' users connected; please wait until the number of users is '+numModUsers)
    }
  
    clickingEnabled = false;
  
negative.code:   var id = a;
    $.get('/sg/move?game_id=<%=sesh[:game_id]%>&box='+id+'&phase='+window.phase).success(r=> {
      if (phase == 'choose') r.val = 'Chosen: '+r.val;
      $('.box.'+id+' .val').html(r.val).addClass(window.phase+'_val').show();
      if (window.phase == 'sample') {
        setTimeout(()=> {
          clickingEnabled = true;
  