function showlocation(){
  seriesdiv = document.getElementById("series");
  datediv = document.getElementById("date");
  locationdiv = document.getElementById("location");
  if(locationdiv.style.display == "none")
  { locationdiv.style.display = "inline"; 
    datediv.style.display = "none";
	seriesdiv.style.display = "none"; }
   else
  { locationdiv.style.display = "none"; }
 return false;
}
 
function showdate(){
  seriesdiv = document.getElementById("series");
  datediv = document.getElementById("date");
  locationdiv = document.getElementById("location");
  if(datediv.style.display == "none")
  { datediv.style.display = "inline";
  locationdiv.style.display = "none";
  seriesdiv.style.display = "none"; }
   else
  { datediv.style.display = "none"; }
  return false;
}

function showseries(){
  seriesdiv = document.getElementById("series");
  datediv = document.getElementById("date");
  locationdiv = document.getElementById("location");
  if(seriesdiv.style.display == "none")
  { seriesdiv.style.display = "inline";
    datediv.style.display = "none";
	locationdiv.style.display = "none"; }
   else
  { seriesdiv.style.display = "none"; }  
  return false;
}