var onImgs = new Array();
onImgs['newcars'] = new Image();
onImgs['usedcars'] = new Image();
onImgs['promos'] = new Image();
onImgs['credit'] = new Image();
onImgs['service'] = new Image();
onImgs['contact'] = new Image();
onImgs['newcars'].src = '/img/en/top_03_on.jpg';
onImgs['usedcars'].src = '/img/en/top_04_on.jpg';
onImgs['promos'].src = '/img/en/top_05_on.jpg';
onImgs['credit'].src = '/img/en/top_06_on.jpg';
onImgs['service'].src = '/img/en/top_07_on.jpg';
onImgs['contact'].src = '/img/en/top_08_on.jpg';

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

var offImgs = new Array();
offImgs['newcars'] = new Image();
offImgs['usedcars'] = new Image();
offImgs['promos'] = new Image();
offImgs['credit'] = new Image();
offImgs['service'] = new Image();
offImgs['contact'] = new Image();
offImgs['newcars'].src = '/img/en/top_03.jpg';
offImgs['usedcars'].src = '/img/en/top_04.jpg';
offImgs['promos'].src = '/img/en/top_05.jpg';
offImgs['credit'].src = '/img/en/top_06.jpg';
offImgs['service'].src = '/img/en/top_07.jpg';
offImgs['contact'].src = '/img/en/top_08.jpg';

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