button1off = new Image(138,47);
button1on = new Image(138,47);
button1off.src="img/menu/menu-ad-off.png";
button1on.src="img/menu/menu-ad-on.png"; 

button2off = new Image(106,47);
button2on = new Image(106,47);
button2off.src="img/menu/menu-uo-off.png";
button2on.src="img/menu/menu-uo-on.png"; 

button3off = new Image(106,47);
button3on = new Image(106,47);
button3off.src="img/menu/menu-so-off.png";
button3on.src="img/menu/menu-so-on.png"; 

button4off = new Image(106,47);
button4on = new Image(106,47);
button4off.src="img/menu/menu-do-off.png";
button4on.src="img/menu/menu-do-on.png"; 

button5off = new Image(81,47);
button5on = new Image(81,47);
button5off.src="img/menu/menu-mw-off.png";
button5on.src="img/menu/menu-mw-on.png"; 

button6off = new Image(76,47);
button6on = new Image(76,47);
button6off.src="img/menu/menu-cu-off.png";
button6on.src="img/menu/menu-cu-on.png"; 

button7off = new Image(51,47);
button7on = new Image(51,47);
button7off.src="img/menu/menu-lk-off.png";
button7on.src="img/menu/menu-lk-on.png"; 

function imageOff1 (the_image) {
  document[the_image].src=eval(the_image + "off.src");
  }

function imageOn1 (the_image) {
  document[the_image].src=eval(the_image + 'on.src');
  }

function imageOff2 (the_image) {
  document[the_image].src=eval(the_image + "off.src");
  }

function imageOn2 (the_image) {
  document[the_image].src=eval(the_image + 'on.src');
  }

function imageOff3 (the_image) {
  document[the_image].src=eval(the_image + "off.src");
  }

function imageOn3 (the_image) {
  document[the_image].src=eval(the_image + 'on.src');
  }

function imageOff4 (the_image) {
  document[the_image].src=eval(the_image + "off.src");
  }

function imageOn4 (the_image) {
  document[the_image].src=eval(the_image + 'on.src');
  }

function imageOff5 (the_image) {
  document[the_image].src=eval(the_image + "off.src");
  }

function imageOn5 (the_image) {
  document[the_image].src=eval(the_image + 'on.src');
  }

function imageOff6 (the_image) {
  document[the_image].src=eval(the_image + "off.src");
  }

function imageOn6 (the_image) {
  document[the_image].src=eval(the_image + 'on.src');
  }

function imageOff7 (the_image) {
  document[the_image].src=eval(the_image + "off.src");
  }

function imageOn7 (the_image) {
  document[the_image].src=eval(the_image + 'on.src');
  }