if (document.images) {
menu01on = new Image(167,23);menu01on.src = "../en_images/menu01_ov.gif";
menu02on = new Image(167,23);menu02on.src = "../en_images/menu02_ov.gif";
menu03on = new Image(167,23);menu03on.src = "../en_images/menu03_ov.gif";
menu04on = new Image(167,23);menu04on.src = "../en_images/menu04_ov.gif";
menu05on = new Image(167,23);menu05on.src = "../en_images/menu05_ov.gif";
menu06on = new Image(167,23);menu06on.src = "../en_images/menu06_ov.gif";
menu07on = new Image(167,36);menu07on.src = "../en_images/menu07_ov.gif";

menu01off = new Image(167,23);menu01off.src = "../en_images/menu01.gif";
menu02off = new Image(167,23);menu02off.src = "../en_images/menu02.gif";
menu03off = new Image(167,23);menu03off.src = "../en_images/menu03.gif";
menu04off = new Image(167,23);menu04off.src = "../en_images/menu04.gif";
menu05off = new Image(167,23);menu05off.src = "../en_images/menu05.gif";
menu06off = new Image(167,23);menu06off.src = "../en_images/menu06.gif";
menu07off = new Image(167,36);menu07off.src = "../en_images/menu07.gif";
  
}

function turnOn(imageName) {
if (document.images) {
document[imageName].src = eval(imageName + "on.src");
  }	
}

function turnOff(imageName) {
if (document.images) {
document[imageName].src = eval(imageName + "off.src");
  }
}