function ActionDeterminator()
  {
  if(document.main_search_form.where[0].checked == true) {
  document.main_search_form.action = 'index.php?module=Lenses&func=flash';
  }
  if(document.main_search_form.where[1].checked == true) {
    document.main_search_form.action = 'index.php?module=icd9&func=view';
  }
  if(document.main_search_form.where[2].checked == true) {
  document.main_search_form.action = 'index.php?module=Meds&func=search';
  }
  if(document.main_search_form.where[3].checked == true) {
  document.main_search_form.action = 'index.php?module=Search&action=search';
  }
  return true;
}

function google_show() {
       document.getElementById('non_google').style.display='none';
       document.getElementById('epocrates_search').style.display='none';
       document.getElementById('google_search').style.display='block';
    }
    
function epocrates_show() {
       document.getElementById('non_google').style.display='none';
       document.getElementById('epocrates_search').style.display='block';
       document.getElementById('google_search').style.display='none';
    }
    
function special_hide() {
       document.getElementById('non_google').style.display='block';
       document.getElementById('google_search').style.display='none';
       document.getElementById('epocrates_search').style.display='none';
    }