bt1off = new Image(79,49); bt1off.src = 'http://www.video-english.com/php/transfer/images/home1.gif';
bt1on = new Image(79,49); bt1on.src = 'http://www.video-english.com/php/transfer/images/home2.gif';

bt2off = new Image(84,49); bt2off.src = 'http://www.video-english.com/php/transfer/images/video1.gif';
bt2on = new Image(84,49); bt2on.src = 'http://www.video-english.com/php/transfer/images/video2.gif';

bt3off = new Image(112,49); bt3off.src = 'http://www.video-english.com/php/transfer/images/cafe1.gif';
bt3on = new Image(112,49); bt3on.src = 'http://www.video-english.com/php/transfer/images/cafe2.gif';

bt4off = new Image(97,49); bt4off.src = 'http://www.video-english.com/php/transfer/images/affiliate1.gif';
bt4on = new Image(97,49); bt4on.src = 'http://www.video-english.com/php/transfer/images/affiliate2.gif';

bt5off = new Image(89,49); bt5off.src = 'http://www.video-english.com/php/transfer/images/tv1.gif';
bt5on = new Image(89,49); bt5on.src = 'http://www.video-english.com/php/transfer/images/tv2.gif';

bt6off = new Image(70,49); bt6off.src = 'http://www.video-english.com/php/transfer/images/links1.gif';
bt6on = new Image(70,49); bt6on.src = 'http://www.video-english.com/php/transfer/images/links2.gif';

bt7off = new Image(112,49); bt7off.src = 'http://www.video-english.com/php/transfer/images/contact1.gif';
bt7on = new Image(112,49); bt7on.src = 'http://www.video-english.com/php/transfer/images/contact2.gif';

function changepic (imgTagName, imgObj) {
if (document.images) {
  document.images[imgTagName].src = imgObj.src}
}