function flyout(x) {
  if (document.getElementById("link-ke"+x).innerHTML == "[-]") {
      document.getElementById("link-ke"+x).innerHTML = "[+]";
      document.getElementById("ke"+x).style.display = "none";
  } else {
     for (var i = 1; i <= 16; i++) {
    	document.getElementById("link-ke"+i).innerHTML = "[+]";
    	document.getElementById("ke"+i).style.display = "none";
     }
     document.getElementById("link-ke"+x).innerHTML = "[-]";
     document.getElementById("ke"+x).style.display = "block";
  }
}