/*
  This work is licensed under a Creative Commons Attribution-Noncommercial-Share Alike 3.0 Unported License.
  (see http://creativecommons.org/licenses/by-nc-sa/3.0)
*/

function toggleVisibility(controlId) {
  var control = document.getElementById(controlId);
  if(control.style.display == 'block' || control.style.display == '')
    control.style.display = 'none';
  else 
    control.style.display = 'block';	       
}

function changeFrame(param) {
  frames['Farmer'].document.getElementById('fnminput').value = param;
  frames['Farmer'].document.getElementById('fnmform').submit();
}

function fullScreen() {
  var control = document.getElementById('Header')
  control.style.display = 'none';
  control = document.getElementById('Left')
  control.style.display = 'none';
  control = document.getElementById('FullScreen')
  control.style.display = 'none';
  control = document.getElementById('Farmer')
  control.width = '100%';
  control = document.getElementById('Menu')
  control.style.display = 'block';
}

function unfullScreen() {
  var control = document.getElementById('Header')
  control.style.display = 'block';
  control = document.getElementById('Left')
  control.style.display = 'block';
  control = document.getElementById('FullScreen')
  control.style.display = 'block';
  control = document.getElementById('Menu')
  control.style.display = 'none';
  control = document.getElementById('Farmer')
  control.width = '80%';
  control.style.display = 'block';
}