function setUpEnv() {
   if (document.getElementById('howmanyhost')) {
      document.getElementById('howmanyhost').style.display = 'none';
      document.getElementById('howmanywine').style.display = 'none';
   }
   if (document.forms.length > 0) {
      if (document.forms[0].query) {
         document.forms[0].query.focus(); // focus the filter box
      }
   }
   return;
}

// Toggle a style element (div, span, etc ..)
function toggle(id) {
   display = document.getElementById(id).style.display;
   if (display == 'none') { 
      document.getElementById(id).style.display = ''; 
   } else { 
      document.getElementById(id).style.display = 'none';
   }
   return;
}