var w = 233;
var h = 57;

var onImgs = new Array();
onImgs['i1'] = new Image(140,h);
onImgs['i2'] = new Image(91,h);
onImgs['i3'] = new Image(83,h);
onImgs['i4'] = new Image(69,h);
onImgs['i5'] = new Image(61,h);
onImgs['i6'] = new Image(90,h);
onImgs['i7'] = new Image(77,h);
onImgs['i8'] = new Image(76,h);
onImgs['i9'] = new Image(84,h);
onImgs['i1'].src = '/img/en/top_menu_01_on.gif';
onImgs['i2'].src = '/img/en/top_menu_02_on.gif';
onImgs['i3'].src = '/img/en/top_menu_03_on.gif';
onImgs['i4'].src = '/img/en/top_menu_04_on.gif';
onImgs['i5'].src = '/img/en/top_menu_05_on.gif';
onImgs['i6'].src = '/img/en/top_menu_06_on.gif';
onImgs['i7'].src = '/img/en/top_menu_07_on.gif';
onImgs['i8'].src = '/img/en/top_menu_08_on.gif';
onImgs['i9'].src = '/img/en/top_menu_09_on.gif';

onImgs['si1'] = new Image(178,32);
onImgs['si2'] = new Image(159,32);
onImgs['si3'] = new Image(159,32);
onImgs['si4'] = new Image(161,32);
onImgs['si5'] = new Image(161,32);
onImgs['si6'] = new Image(162,32);
onImgs['si1'].src = '/img/en/sub_menu_01_on.gif';
onImgs['si2'].src = '/img/en/sub_menu_02_on.gif';
onImgs['si3'].src = '/img/en/sub_menu_03_on.gif';
onImgs['si4'].src = '/img/en/sub_menu_04_on.gif';
onImgs['si5'].src = '/img/en/sub_menu_05_on.gif';
onImgs['si6'].src = '/img/en/sub_menu_06_on.gif';

function imgOn(imgName){
  if (document.images){
    document.images[imgName].style.cursor = 'pointer';
    document.images[imgName].src = onImgs[imgName].src;
  }
}

var offImgs = new Array();
offImgs['i1'] = new Image(140,h);
offImgs['i2'] = new Image(91,h);
offImgs['i3'] = new Image(83,h);
offImgs['i4'] = new Image(69,h);
offImgs['i5'] = new Image(61,h);
offImgs['i6'] = new Image(90,h);
offImgs['i7'] = new Image(77,h);
offImgs['i8'] = new Image(76,h);
offImgs['i9'] = new Image(84,h);
offImgs['i1'].src = '/img/en/top_menu_01.gif';
offImgs['i2'].src = '/img/en/top_menu_02.gif';
offImgs['i3'].src = '/img/en/top_menu_03.gif';
offImgs['i4'].src = '/img/en/top_menu_04.gif';
offImgs['i5'].src = '/img/en/top_menu_05.gif';
offImgs['i6'].src = '/img/en/top_menu_06.gif';
offImgs['i7'].src = '/img/en/top_menu_07.gif';
offImgs['i8'].src = '/img/en/top_menu_08.gif';
offImgs['i9'].src = '/img/en/top_menu_09.gif';

offImgs['si1'] = new Image(178,32);
offImgs['si2'] = new Image(159,32);
offImgs['si3'] = new Image(159,32);
offImgs['si4'] = new Image(161,32);
offImgs['si5'] = new Image(161,32);
offImgs['si6'] = new Image(162,32);
offImgs['si1'].src = '/img/en/sub_menu_01.gif';
offImgs['si2'].src = '/img/en/sub_menu_02.gif';
offImgs['si3'].src = '/img/en/sub_menu_03.gif';
offImgs['si4'].src = '/img/en/sub_menu_04.gif';
offImgs['si5'].src = '/img/en/sub_menu_05.gif';
offImgs['si6'].src = '/img/en/sub_menu_06.gif';

function imgOff(imgName){
  if (document.images){
    document.images[imgName].style.cursor = 'pointer';
    document.images[imgName].src = offImgs[imgName].src;
  }
}