function selectbox(boxtype)
{
  var tab_search_area = document.getElementById('tab_search_area');
  var tab_search_type = document.getElementById('tab_search_type');  
  var divsearcharea = document.getElementById('divsearcharea');
  var divsearchtype = document.getElementById('divsearchtype');
  if(boxtype == 1)
  {
    tab_search_area.className = 'tab_search_area1';
    tab_search_type.className = 'tab_search_type0';
    divsearcharea.style.display = 'block';
    divsearchtype.style.display = 'none';
  }
  else
  {
    tab_search_area.className = 'tab_search_area0';
    tab_search_type.className = 'tab_search_type1';
    divsearcharea.style.display = 'none';
    divsearchtype.style.display = 'block';
  }
}