function setImage(imgName, type) {
  var Img = new Image(90,2)
  if (type == "On") {
    Img.src = "../img/common/chip_6699FF.gif"
  } else if (type == "Off") {
    Img.src = "../img/common/spacer.gif"
  } else if (type == "Cur") {
    Img.src = "../img/common/chip_3366CC.gif"
  }
  document.images[imgName].src = Img.src
  return false
}