function setphoto(av) {
  if (av == 'Y') {
    photoDivshow();
  } else {
    photoDivhide();
  }
}
  
function photo() {
  var elem = document.getElementById("photo");
  var doShow = (elem.style.visibility == "hidden");
  
  if (doShow)
    photoDivshow();
  else
    photoDivhide();
}

function photoDivhide() {
  var elem = document.getElementById("photo");
  elem.style.visibility = "hidden";
  elem.style.display = "none";
  elem.style.height = "0px";
  
  var photoCmdElem = document.getElementById("photocmd");
  photoCmdElem.src='img/plus.gif';
}

function photoDivshow() {
  var elem = document.getElementById("photo");
  elem.style.visibility = "visible";
  elem.style.display = "block";
  elem.style.height = "";
  
  var photoCmdElem = document.getElementById("photocmd");
  photoCmdElem.src='img/minus.gif';
}