function showRollover (name) {
  var ctr = 1;
  
  while (document.getElementById("rollover" + ctr + "-off-imageDiv") != null) {
    if ("rollover" + ctr == name) {
      document.getElementById("rollover" + ctr + "-off-imageDiv").style.display = "none";
      document.getElementById("rollover" + ctr + "-on-imageDiv").style.display = "block";
      document.getElementById("rollover" + ctr + "-content").style.display = "block";
    }
    else {
      document.getElementById("rollover" + ctr + "-off-imageDiv").style.display = "block";
      document.getElementById("rollover" + ctr + "-on-imageDiv").style.display = "none";
      document.getElementById("rollover" + ctr + "-content").style.display = "none";
    }
    
    ctr++;
  }
}