function search_open()
{
  document.getElementById('search_main').style.display = 'block';
}
function search_close()
{
  close_local();
  close_type();
  close_stars();
  document.getElementById('search_main').style.display = 'none';
}
function open_local()
{
  close_stars();
  close_type();
  document.getElementById('search_local').style.display = 'block';
}
function close_local()
{
  if (document.getElementById('search_local'))
    document.getElementById('search_local').style.display = 'none';  
}


function open_type()
{
  close_local();
  close_stars();
  document.getElementById('search_type').style.display = 'block'; 
}
function close_type()
{
  if (document.getElementById('search_type'))
    document.getElementById('search_type').style.display = 'none';   
}


function open_stars()
{
  close_local();
  close_type();
  document.getElementById('search_stars').style.display = 'block'; 
}
function close_stars()
{
  if (document.getElementById('search_stars'))
    document.getElementById('search_stars').style.display = 'none';   
}