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) {
  button7_off = new Image
  button7_on = new Image

  button7_off.src = "images/button7_off.jpg"
  button7_on.src = "images/button7_on.jpg"

}
else {
  button7_off = ""
  button7_on = ""
  document.navigate7 = ""
}

if (document.images) {
  button8_off = new Image
  button8_on = new Image

  button8_off.src = "images/button8_off.jpg"
  button8_on.src = "images/button8_on.jpg"

}
else {
  button8_off = ""
  button8_on = ""
  document.navigate8 = ""
}

if (document.images) {
  button9_off = new Image
  button9_on = new Image

  button9_off.src = "images/button9_off.jpg"
  button9_on.src = "images/button9_on.jpg"

}
else {
  button9_off = ""
  button9_on = ""
  document.navigate9 = ""
}