function do_new_advanced_search() {
   //open_tab = document.find_restaurant.open_tab;
   open_tab = document.getElementById("global_adv_option");
   var open_tab_ix = open_tab.selectedIndex;
   var open_tab_value = open_tab.options[open_tab_ix].value;
   url  = 'http://' + location.hostname + '/search_form.php?open_tab=' + open_tab_value;
   loadDoc(url, 'new_search_form');
}
function do_new_simple_search() {
   open_tab = document.getElementById("global_simple_option");
   var open_tab_ix = open_tab.selectedIndex;
   var open_tab_value = open_tab.options[open_tab_ix].value;
   url  = 'http://' + location.hostname + '/search_form.php?search_type=simple&open_tab=' + open_tab_value;
   loadDoc(url, 'simple_search_form');
}
function validateKeywordSearchForm() {
   open_tab = document.keyword_search_form.open_tab.value;
   if (open_tab == "guide_tab" || open_tab == "list_tab" || open_tab == "film_tab") {
      return true;
   }
   else {
      kw = document.keyword_search_form.keyword.value;
      kw = new String(kw);
      kw = kw.replace( /^\s+/g, "" );// strip leading
      if (kw == "") {
         alert("Please enter a keyword.");
         document.keyword_search_form.keyword.focus();
         return false;
      }
      return true;
   }
}