function change1() {
  document.getElementById("hit1").className="hit";
  document.getElementById("hit2").className="box";
  document.getElementById("hit3").className="box";
  document.getElementById("hit4").className="box";
  document.getElementById("hit5").className="box";
  
  document.getElementById("box1").style.display='block';
  document.getElementById("box2").style.display='none';
  document.getElementById("box3").style.display='none';
  document.getElementById("box4").style.display='none';
  document.getElementById("box5").style.display='none';
}
function change2() {
  document.getElementById("hit1").className="box";
  document.getElementById("hit2").className="hit";
  document.getElementById("hit3").className="box";
  document.getElementById("hit4").className="box";
  document.getElementById("hit5").className="box";
  
  document.getElementById("box1").style.display='none';
  document.getElementById("box2").style.display='block';
  document.getElementById("box3").style.display='none';
  document.getElementById("box4").style.display='none';
  document.getElementById("box5").style.display='none';
}
function change3() {
  document.getElementById("hit1").className="box";
  document.getElementById("hit2").className="box";
  document.getElementById("hit3").className="hit";
  document.getElementById("hit4").className="box";
  document.getElementById("hit5").className="box";
  
  document.getElementById("box1").style.display='none';
  document.getElementById("box2").style.display='none';
  document.getElementById("box3").style.display='block';
  document.getElementById("box4").style.display='none';
  document.getElementById("box5").style.display='none';
}
function change4() {
  document.getElementById("hit1").className="box";
  document.getElementById("hit2").className="box";
  document.getElementById("hit3").className="box";
  document.getElementById("hit4").className="hit";
  document.getElementById("hit5").className="box";
  
  document.getElementById("box1").style.display='none';
  document.getElementById("box2").style.display='none';
  document.getElementById("box3").style.display='none';
  document.getElementById("box4").style.display='block';
  document.getElementById("box5").style.display='none';
}
function change5() {
  document.getElementById("hit1").className="box";
  document.getElementById("hit2").className="box";
  document.getElementById("hit3").className="box";
  document.getElementById("hit4").className="box";
  document.getElementById("hit5").className="hit";
  
  document.getElementById("box1").style.display='none';
  document.getElementById("box2").style.display='none';
  document.getElementById("box3").style.display='none';
  document.getElementById("box4").style.display='none';
  document.getElementById("box5").style.display='block';
}