function toggleVisibility() {
  document.getElementById("toggleMe").style.display = "";
  if(document.getElementById("toggleMe").style.visibility == "hidden" ) {
    document.getElementById("toggleMe").style.visibility = "visible";
  }
  else {
  document.getElementById("toggleMe").style.visibility = "hidden";
  }
}
function toggleDisplay() {
  document.getElementById("toggleMe").style.visibility = "visible";
  if(document.getElementById("toggleMe").style.display == "none" ) {
    document.getElementById("toggleMe").style.display = "";
  }
  else {
    document.getElementById("toggleMe").style.display = "none";
  }
}

function toggleSpecific(elementid) {
  var node = document.getElementById(elementid);
  if(node.style.display == '') {
    node.style.display='none';
  }
  else {
    node.style.display = '';
  }
}