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

  function show_it(itemID){
	  elem = document.getElementById(itemID);
	  if( elem ) elem.style.display = 'inline';
  }

  function hide_it(itemID){
	  elem = document.getElementById(itemID);
	  if( elem ) elem.style.display = 'none';
  }