var tosearch_text='';

function tosearch_focus(t) {  
  if (tosearch_text == '') tosearch_text = t.value;
  if (t.className == 'unactive') t.value = '';
  t.className = 'active';
}

function tosearch_blur(t) {
  if (t.value == '') { 
    t.value = tosearch_text;
    t.className = 'unactive';
  }
}

function check_tosearchform(t) {
  return (t.s.value != '' && t.s.className == 'active');
}

function submit_tosearchform(t) {
  t = document.getElementById('searchform');
  if (check_tosearchform(t)) t.submit();
  return false;
}

function show_popup(id) {  
  document.getElementById(id).className = 'popup';
  return false;
}

function hide_popup(id) {
  document.getElementById(id).className = 'popup hidden';
  return false;  
}