var Bass = {
  r2a: {'1':'4', '2':'8', '3':'12'},
  a2r: {'1':'1', '2':'1', '3':'1', '4':'1',
      '5':'2', '6':'2', '7':'2', '8':'2',
      '9':'3', '10':'3', '11':'3', '12':'3'},
  assignArrival: function() {
    // get date from b_arr_date
    var arr_date = $("#b_arr_date").attr('value');
    // get day and yearmonth parts
    var parts = arr_date.split('-');
    var day = parts[2];
    $("#b_arr_day option[value='"+day+"']").attr('selected', 'selected');
    var monthyear = parts[0]+'-'+parts[1];
    $("#b_arr_monthyear option[value='"+monthyear+"']").attr('selected', 'selected');
  },
  alignArrival : function() {
    var day = $("#b_arr_day").attr('value');
    var monthyear = $("#b_arr_monthyear").attr('value');
    $("#b_arr_date").attr('value', monthyear+'-'+day);
  },
  assignAdults: function() {
    var rooms = $("#b_rooms").attr('value');
    var max_adults = Bass.r2a[rooms];
    var curr_adults = $("#b_adults").attr('value');
    // If adulst count bigger than rooms can contain
    if (parseInt(curr_adults) > parseInt(max_adults)) {
      $("#b_adults option[value='"+max_adults+"']").attr('selected', 'selected');
    }
    // If we have empty rooms
    if (parseInt(rooms) > parseInt(curr_adults)){
      $("#b_adults option[value='"+rooms+"']").attr('selected', 'selected');
    }
  },
  assignRooms: function() {
    var rooms = $("#b_rooms").attr('value');
    var curr_adults = $("#b_adults").attr('value');
    var need_rooms = Bass.a2r[curr_adults];
    if (parseInt(rooms) < parseInt(need_rooms)) {
      $("#b_rooms option[value='"+need_rooms+"']").attr('selected', 'selected');
    }
    if (parseInt(curr_adults) < parseInt(rooms)) {
      $("#b_rooms option[value='"+curr_adults+"']").attr('selected', 'selected');
    }
  },
  submitForm: function () {
    // 1: Calculate date and period
    if($("#b_arr_date").attr('value')==null){
      $("#b_arr_date").attr({'value': $("#b_arr_monthyear").attr('value')+"-"+$("#b_arr_day").attr('value')});
    }
    var arr_date = $("#b_arr_date").attr('value');
    // get day and yearmonth parts
    var parts = arr_date.split('-');
    var day = parts[2];
    var month = parts[1];
    var year = parts[0];
    $('#bridge_book #h_gg_a').attr('value', day);
    $('#bridge_book #h_mm_a').attr('value', month);
    $('#bridge_book #h_aa_a').attr('value', year);
    // Create date difference
    if($("#d_arr_date").attr('value')==null){
      $("#b_dep_date").attr({'value': $("#b_dep_monthyear").attr('value')+"-"+$("#b_dep_day").attr('value')});
    }
    $('#bridge_book #h_n_notti').attr('value', $("#b_nights").attr('value'));
    // Most hardest part -- rooms and adults.
    // We sill assume what all adults is distributed by rooms
    // in equal parts. So, 10 ad on 3 r = (10/3) = 4, 4, 2 -> 3, 3, 4
    var rooms = parseInt($("#b_rooms").attr('value'));
    $('#bridge_book #h_qta1').attr('value', rooms);
    var total_adults = parseInt($("#b_adults").attr('value'));
    var adults = [];
    var tmp_diff = 0;
    var tmp_rooms = rooms;
    // we will make integer difference
    for (var i = 1; i<=rooms; i++) {
      tmp_diff = Math.round(total_adults / tmp_rooms);
      adults.push(tmp_diff);
      tmp_rooms--;
      total_adults -= tmp_diff;
      $('#bridge_book #h_adulti'+i).attr('value', tmp_diff);
      $('#bridge_book #sp_ad'+(i-1)).attr('value', tmp_diff);
      $('#bridge_book #sp_qta'+(i-1)).attr('value', 1);
    }
    //window.open('', 'scheda', 'width=900,height=500,left=150,toolbar=no,scrollbars=yes,resizable=no');
//    pageTracker._linkByPost($('#bridge_book').get(0));
    $('#bridge_book').submit();
  }
}
jQuery(function($){
//alert('show calendar');
      $("#b_arr_date").attachDatepicker({showOn: 'button',
                        buttonImage: './images/day.png',
                        buttonImageOnly: true,
                        dateFormat: 'yy-mm-dd',
                        minDate: "+1d",
                        onSelect: Bass.assignArrival});
    });