var onImgs = new Array();
onImgs['i1'] = new Image();
onImgs['i2'] = new Image();
onImgs['i3'] = new Image();
onImgs['i4'] = new Image();
onImgs['i5'] = new Image();
onImgs['i6'] = new Image();
onImgs['i1'].src = 'http://www.chartrandford.com/img/fr/menu_main01_on.jpg';
onImgs['i2'].src = 'http://www.chartrandford.com/img/fr/menu_main02_on.jpg';
onImgs['i3'].src = 'http://www.chartrandford.com/img/fr/menu_main03_on.jpg';
onImgs['i4'].src = 'http://www.chartrandford.com/img/fr/menu_main04_on.jpg';
onImgs['i5'].src = 'http://www.chartrandford.com/img/fr/menu_main05_on.jpg';
onImgs['i6'].src = 'http://www.chartrandford.com/img/fr/menu_main06_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['i1'] = new Image();
offImgs['i2'] = new Image();
offImgs['i3'] = new Image();
offImgs['i4'] = new Image();
offImgs['i5'] = new Image();
offImgs['i6'] = new Image();
offImgs['i1'].src = 'http://www.chartrandford.com/img/fr/menu_main01.jpg';
offImgs['i2'].src = 'http://www.chartrandford.com/img/fr/menu_main02.jpg';
offImgs['i3'].src = 'http://www.chartrandford.com/img/fr/menu_main03.jpg';
offImgs['i4'].src = 'http://www.chartrandford.com/img/fr/menu_main04.jpg';
offImgs['i5'].src = 'http://www.chartrandford.com/img/fr/menu_main05.jpg';
offImgs['i6'].src = 'http://www.chartrandford.com/img/fr/menu_main06.jpg';

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