function allClicked(a) {
  var l = document.Photos.elements.length;
  for (i = 0; i < l; i++) {
    var e = document.Photos.elements[i];

    if (e.name == "photo") {
	  e.checked = true;
    }
  }

  if (a == 1) {
	  document.Photos.allbox2.checked = document.Photos.allbox1.checked;
  }
  else {
	  document.Photos.allbox1.checked = document.Photos.allbox2.checked;
  }
  if(document.Photos.allbox1.checked){
	  document.Photos.debox1.checked = false;
	  document.Photos.debox2.checked = false;
  }
}

function deClicked(a) {

  var l = document.Photos.elements.length;
  for (i = 0; i < l; i++) {
    var e = document.Photos.elements[i];

    if (e.name == "photo") {
	  e.checked = false;
    }
  }
  if (a == 1) {
	  document.Photos.debox2.checked = document.Photos.debox1.checked;
  }
  else {
	  document.Photos.debox1.checked = document.Photos.debox2.checked;
  }
  if(document.Photos.debox1.checked){
	  document.Photos.allbox1.checked = false;
	  document.Photos.allbox2.checked = false;
  }
}