var buttonList = "phlogo"
   var buttonArray = buttonList.split(",")
   var normalImageDB = new Array()
   var raisedImageDB = new Array()

   for (i=0; i<buttonArray.length; i++) {
      normalImageDB[buttonArray[i]] = new Image(30, 30)
      normalImageDB[buttonArray[i]].src = "/images/" + buttonArray[i] + "1.gif"
      raisedImageDB[buttonArray[i]] = new Image(30, 30)
      raisedImageDB[buttonArray[i]].src = "/images/" + buttonArray[i] + "2.gif"
   }

   function showRaisedButton(objName, index) {
      objName.src = raisedImageDB[buttonArray[index]].src
   }
   function showNormalButton(objName, index) {
      objName.src = normalImageDB[buttonArray[index]].src
   }