function showCarSeason(thisSeason)
{
  // return all buttons to passive
  document.getElementById("imgHighSeason").src = "images/gettinghere/high-passive-but.gif";
  document.getElementById("imgMidSeason").src = "images/gettinghere/mid-passive-but.gif";
  document.getElementById("imgLowSeason").src = "images/gettinghere/low-passive-but.gif";

  // hide all title divs
  document.getElementById("divHighSeasonTitle").style.display = "none";
  document.getElementById("divMidSeasonTitle").style.display = "none";
  document.getElementById("divLowSeasonTitle").style.display = "none";
  document.getElementById("divCarBookingTitle").style.display = "none";

  // hide all car divs
  document.getElementById("divHighSeason").style.display = "none";
  document.getElementById("divMidSeason").style.display = "none";
  document.getElementById("divLowSeason").style.display = "none";
  document.getElementById("divCarBooking").style.display = "none";
  
  if (thisSeason == "mid")
  {
    document.getElementById("imgMidSeason").src = "images/gettinghere/mid-active-but.gif";
    document.getElementById("divMidSeasonTitle").style.display = "block";
    document.getElementById("divMidSeason").style.display = "block";
  }
  else if (thisSeason == "low")
  {
    document.getElementById("imgLowSeason").src = "images/gettinghere/low-active-but.gif";
    document.getElementById("divLowSeasonTitle").style.display = "block";
    document.getElementById("divLowSeason").style.display = "block";
  }
  else if (thisSeason == "booking")
  {
    document.getElementById("divCarBookingTitle").style.display = "block";
    document.getElementById("divCarBooking").style.display = "block";
  }
  else // default to high
  {
    document.getElementById("imgHighSeason").src = "images/gettinghere/high-active-but.gif";
    document.getElementById("divHighSeasonTitle").style.display = "block";
    document.getElementById("divHighSeason").style.display = "block";
  }
}

function mouseOverSeason(myImage)
{
  if (myImage == "imgHighSeason") { overImage = "images/gettinghere/high-over-but.gif"; }
  else if (myImage == "imgMidSeason") { overImage = "images/gettinghere/mid-over-but.gif"; }
  else if (myImage == "imgLowSeason") { overImage = "images/gettinghere/low-over-but.gif"; }
  document.getElementById(myImage).src = overImage;
}

function mouseOutSeason(myImage)
{
  outImage = "images/gettinghere/";
  if (myImage == "imgHighSeason" && document.getElementById("divHighSeasonTitle").style.display == "block") { outImage += "high-active-but.gif"; }
  else if (myImage == "imgHighSeason" && document.getElementById("divHighSeasonTitle").style.display == "none") { outImage += "high-passive-but.gif"; }
  else if (myImage == "imgMidSeason" && document.getElementById("divMidSeasonTitle").style.display == "block") { outImage += "mid-active-but.gif"; }
  else if (myImage == "imgMidSeason" && document.getElementById("divMidSeasonTitle").style.display == "none") { outImage += "mid-passive-but.gif"; }
  else if (myImage == "imgLowSeason" && document.getElementById("divLowSeasonTitle").style.display == "block") { outImage += "low-active-but.gif"; }
  else if (myImage == "imgLowSeason" && document.getElementById("divLowSeasonTitle").style.display == "none") { outImage += "low-passive-but.gif"; }
  
  document.getElementById(myImage).src = outImage;
}