function c_off_hideAll()
{
  if (document.forms[0].c_off != null)
  {
    if (document.forms[0].c_off.checked == false) {changeObjectVisibility("c_off_QS","hidden","none");}
  }

//  if (document.crForm.c_off.checked == false) {changeObjectVisibility("c_off_QS","hidden","none");}
}