function b_set(i) {

    if ( i>0 ) {
      $('#bs_1 a img').attr("src",'file/1000/banner1_s.gif');
      $('#bs_2 a img').attr("src",'file/1000/banner2_s.gif');
      $('#bs_3 a img').attr("src",'file/1000/banner3_s.gif');
      $('#bs_'+i+' a img').attr("src",'file/1000/banner'+i+'_s_on.gif');
      $('#b_1, #b_2, #b_3').css('display','none');
      $('#b_'+i).css('display','block');
      $.innerfade.current(i);
    } else {
      $.innerfade.restart();
    }

}

$(function(){

  var fade_elements = $('ul#b_sets').children();
  var fade_setting = {
      speed: 500,
      timeout: 2000,
      type: 'sequence',
      containerheight: '254px',
      animationtype: 'fade'
    };

  $('ul#b_sets').innerfade(fade_setting);

  $('#b_1 a, #b_2 a, #b_3 a, #bs_1 a, #bs_2 a, #bs_3 a, #bs_bl, #bs_br').mouseout(function () {
    b_set(0);
  });

  $('#b_1 a, #bs_1 a').mouseover(function () {
    b_set(1);
  });

  $('#b_2 a, #bs_2 a').mouseover(function () {
    b_set(2);
  });

  $('#b_3 a, #bs_3 a').mouseover(function () {
    b_set(3);
  });

  $('#bs_br').click(function () {
    var temp_c = $.innerfade.current() + 1;
    if ( temp_c > 2 ) {
        temp_c = 0;
    }
    b_set(temp_c+1);
  });

  $('#bs_bl').click(function () {
    var temp_c = $.innerfade.current() - 1;
    if ( temp_c < 0 ) {
        temp_c = 2;
    }
    b_set(temp_c+1);
  });
  
});