function visi(id,h){
  area = document.getElementById(id);
  if (area.style.visibility == 'hidden'){
    area.style.visibility = 'visible';
    area.style.height = '';
	area.style.overflow = 'visible';
  }else{
    area.style.visibility = 'hidden';
    area.style.height = '1px';
	area.style.overflow = 'hidden';
  }
}