function show(id) {
  document.getElementById(id).style.display = "";
}
function hide(id) {
  document.getElementById(id).style.display = "none";
}
var toggle = 1
function toggle_show(id) {
  if (toggle == 1) {
  	document.getElementById(id).style.display = "none";
  }
  else {
  	document.getElementById(id).style.display = "";
  }
  toggle = toggle * -1;
}

function enlarge_image(id, size) {
  document.getElementById(id).style.width = "100px";
}

function toggle_enlarge(id, size) {
  if (toggle == 1) {
  	document.getElementById(id).style.width = "100px";
  	document.getElementById('enlarge_text').innerHTML = "original size";
  }
  else {
    document.getElementById(id).style.width = "";
    document.getElementById('enlarge_text').innerHTML = "enlarge";
  }
  toggle = toggle * -1;
}