if (document.images) {
  button0_off = new Image
  button0_on = new Image

  button0_off.src = "images/button0_off.jpg"
  button0_on.src = "images/button0_on.jpg"

}
else {
  button0_off = ""
  button0_on = ""
  document.navigate0 = ""
}

if (document.images) {
  button1_off = new Image
  button1_on = new Image

  button1_off.src = "images/button1_off.jpg"
  button1_on.src = "images/button1_on.jpg"

}
else {
  button1_off = ""
  button1_on = ""
  document.navigate1 = ""
}

if (document.images) {
  button2_off = new Image
  button2_on = new Image

  button2_off.src = "images/button2_off.jpg"
  button2_on.src = "images/button2_on.jpg"

}
else {
  button2_off = ""
  button2_on = ""
  document.navigate2 = ""
}

if (document.images) {
  button3_off = new Image
  button3_on = new Image

  button3_off.src = "images/button3_off.jpg"
  button3_on.src = "images/button3_on.jpg"

}
else {
  button3_off = ""
  button3_on = ""
  document.navigate3 = ""
}

if (document.images) {
  button4_off = new Image
  button4_on = new Image

  button4_off.src = "images/button4_off.jpg"
  button4_on.src = "images/button4_on.jpg"

}
else {
  button4_off = ""
  button4_on = ""
  document.navigate4 = ""
}

if (document.images) {
  button5_off = new Image
  button5_on = new Image

  button5_off.src = "images/button5_off.jpg"
  button5_on.src = "images/button5_on.jpg"

}
else {
  button5_off = ""
  button5_on = ""
  document.navigate5 = ""
}

if (document.images) {
  button6_off = new Image
  button6_on = new Image

  button6_off.src = "images/button6_off.jpg"
  button6_on.src = "images/button6_on.jpg"

}
else {
  button6_off = ""
  button6_on = ""
  document.navigate6 = ""
}

if (document.images) {
  button99_off = new Image
  button99_on = new Image

  button99_off.src = "images/button99_off.jpg"
  button99_on.src = "images/button99_on.jpg"

}
else {
  buttom99_off = ""
  button99_on = ""
  document.navigate99 = ""
}

if (document.images) {
  button98_off = new Image
  button98_on = new Image

  button98_off.src = "images/button98_off.jpg"
  button98_on.src = "images/button98_on.jpg"

}
else {
  buttom97_off = ""
  button97_on = ""
  document.navigate97 = ""
}

if (document.images) {
  button97_off = new Image
  button97_on = new Image

  button97_off.src = "images/button97_off.jpg"
  button97_on.src = "images/button97_on.jpg"

}
else {
  buttom97_off = ""
  button97_on = ""
  document.navigate97 = ""
}

if (document.images) {
  button96_off = new Image
  button96_on = new Image

  button96_off.src = "images/button96_off.jpg"
  button96_on.src = "images/button96_on.jpg"

}
else {
  buttom96_off = ""
  button96_on = ""
  document.navigate96 = ""
}