function visibilityToggle(id) {
 var el = document.getElementById(id).style;
 if(el.visibility == "hidden") {
  el.visibility = "visible";
 }
 else if(el.visibility == "visible") {
  el.visibility = "hidden";
 }
}

function toggle_it(itemID){
    // Toggle visibility between none and inline
    if ((document.getElementById(itemID).style.display == 'none'))
    {
      document.getElementById(itemID).style.display = 'inline';
    } else {
      document.getElementById(itemID).style.display = 'none';
    }
}