// requires elements_attributes.js
   
   var region_options = new Array();

   function regions_copy(select_id) {
      var s = document.getElementById(select_id);
      var j = 0;
      for (var i = 0; i < s.length; i++) {
	 if (s.options[i].className != 'default') {
            region_options[j++] = s.options[i];
	 }
      }
   }
   
   function regions_clear(select_id) {
      var s = document.getElementById(select_id);
      for (var i = 0; i < s.length; i++) {
	 if (s.options[i].className != 'default') {
	    s.removeChild(s.options[i]);
	    i--;
	 }
      }      
   }

   function regions_countrize(select_id, country_id) {
      regions_clear(select_id);
      var s = document.getElementById(select_id);
      for (var i = 0; i < region_options.length; i++) {
         if (region_options[i].className == 'countryregion'+country_id) {
            s.appendChild(region_options[i]);
         }
      }
   }
   
   function searchform_simplify() {
      var advpart = document.getElementById('sidebar-search-form-advpart');
      advpart.style.display = 'none';
      var advlink = document.getElementById('sidebar-search-form-advlink');
      advlink.style.display = 'block';
      var smplink = document.getElementById('sidebar-search-form-smplink');
      smplink.style.display = 'none';
      var advflag = document.getElementById('sidebar-search-form-theform-adv');
      advflag.value = 0;
      var jsdflag = document.getElementById('sidebar-search-form-theform-jsd');
      jsdflag.value = 1;
   }
   
   function searchform_advancize() {
      var advpart = document.getElementById('sidebar-search-form-advpart');
      advpart.style.display = 'block';
      var advlink = document.getElementById('sidebar-search-form-advlink');
      advlink.style.display = 'none';
      var smplink = document.getElementById('sidebar-search-form-smplink');
      smplink.style.display = 'block';
      var advflag = document.getElementById('sidebar-search-form-theform-adv');
      advflag.value = 1;
      var jsdflag = document.getElementById('sidebar-search-form-theform-jsd');
      jsdflag.value = 1;
   }