function showlargeone() {
  document.getElementById('largeone').style.display="block";
}

function showlargetwo() {
  document.getElementById('largetwo').style.display="block";
}

function showlargethree() {
  document.getElementById('largethree').style.display="block";
}

function hidelarge() {
  document.getElementById('largeone').style.display="none";
  document.getElementById('largetwo').style.display="none";
  document.getElementById('largethree').style.display="none";
}