//Preload the School District Images images.
  AHST = new Image(774,497);
  AHST.src = "images/Schools/AHST.gif";
  BoyerValley = new Image(774,497);
  BoyerValley.src = "images/Schools/BoyerValley.gif";
  Harlan = new Image(774,497);
  Harlan .src = "images/Schools/Harlan.gif";
  LoganMagnolia = new Image(774,497);
  LoganMagnolia .src = "images/Schools/LoganMagnolia.gif";
  MissouriValley = new Image(774,497);
  MissouriValley .src = "images/Schools/MissouriValley.gif";
  SchoolDistricts = new Image(774,497);
  SchoolDistricts.src = "images/Schools/Schools.gif";
  TriCenter= new Image(774,497);
  TriCenter .src = "images/Schools/TriCenter.gif";
  WestHarrison = new Image(774,497);
  WestHarrison.src = "images/Schools/WestHarrison.gif";
  WestMonona = new Image(774,497);
  WestMonona.src = "images/Schools/WestMonona.gif";
  Woodbine = new Image(774,497);
  Woodbine.src = "images/Schools/Woodbine.gif";

function showSchool(schoolDist) {
  var theMapImage = document.getElementById("Schools");
  switch (schoolDist) {
     case "AHST":
        theMapImage.src = AHST.src;
        break;
     case "BoyerValley":
        theMapImage.src = BoyerValley.src;
        break;
     case "Harlan":
        theMapImage.src = Harlan.src;
        break;
     case "LoganMagnolia":
        theMapImage.src = LoganMagnolia.src;
        break;
     case "MissouriValley":
        theMapImage.src = MissouriValley.src;
        break;
     case "TriCenter":
        theMapImage.src = TriCenter.src;
        break;
     case "WestHarrison":
        theMapImage.src = WestHarrison.src;
        break;
     case "WestMonona":
        theMapImage.src = WestMonona.src;
        break;
     case "Woodbine":
        theMapImage.src = Woodbine.src;
        break;
     case "Schools":
        theMapImage.src = SchoolDistricts.src;
        break;    
  }
}