//
// functions for selecting a search engine
//
// document.forms[2] : main form in "form-search.inc"
//
var query_key = "";
var s_num = 0;

function select_engine(s_num) {
  if (s_num == 0) {
    s_num = document.forms[2].s_engine.selectedIndex + 1 + 2; // need to shift
  } else {
    s_num = s_num + 2; // need to shift
  }
  query_key = document.forms[2].query_key.value;
  if (document.forms[2].elements[3].checked) {
    query_key = '*' + query_key + '*';
  }
  document.forms[s_num].elements[0].value = query_key;
  document.forms[s_num].target="newWin";
  document.forms[s_num].submit();
}

// function select_engine_test() {
//   document.forms[3].elements[0].value = document.forms[10].query_key.value;
//   document.forms[3].target="newWin";
//   document.forms[3].submit();
// }

//
// functions for selecting a internal page
//
function build_url_list() {
  var a = build_url_list.arguments;
  for (i = 0; i < a.length; i++) {
    this[i] = a[i];
  }
  this.length = a.length;
}

function jump(where, open_new_window) {
  if (where.selectedIndex != 0) {
    var url = eval(where.name + "[where.selectedIndex]")
    if (open_new_window) {
      openWindow(url);
    } else {
      location.href = url;
    }
  }
} 

//
// functions for image selection
//
var dumb_browser = false;
if (navigator.appVersion.indexOf("2.") != -1) {
  dumb_browser = true;
} 
if ((navigator.appVersion.indexOf("3.") != -1) 
    && (navigator.appName.indexOf("Explorer") != -1)){
  dumb_browser = true;
} else {
  dumb_browser = false;
}

function on(name)   {
  if (dumb_browser == false) {
    document[name].src      = eval(name + "_on.src");
//  document["alt_img"].src = eval(name + "_alt_on.src");
  }
}
function off(name)  {
  if (dumb_browser == false) {
    document[name].src      = eval(name + ".src");
//  document["alt_img"].src = eval(name + "_alt.src");
  }
}

//
// Overwritable Variables
//

// url list for form #0
var jump_0 = new build_url_list("",
 "/glist/abc.html",
 "/glist/genre.html",
 "useful.html",
 "user.html",
 "recommend.html",
  "about.html",
  "service.html",
  "rental-URL.html",
  "rental-WWW.html",
  "design-WWW.html",
  "ml.html",
  "apply.html",
  "info.html",
  "regist.html"
);


// Image Sources

img_1= new Image();
img_1.src = "/images/index-1a.gif";
img_1_on = new Image();
img_1_on.src = "/images/index-1b.gif";

img_2= new Image();
img_2.src = "/images/index-2a.gif";
img_2_on = new Image();
img_2_on.src = "/images/index-2b.gif";

img_3= new Image();
img_3.src = "/images/index-3a.gif";
img_3_on = new Image();
img_3_on.src = "/images/index-3b.gif";

img_4= new Image();
img_4.src = "/images/index-4a.gif";
img_4_on = new Image();
img_4_on.src = "/images/index-4b.gif";

img_5= new Image();
img_5.src = "/images/index-5a.gif";
img_5_on = new Image();
img_5_on.src = "/images/index-5b.gif";

img_6= new Image();
img_6.src = "/images/index-6a.gif";
img_6_on = new Image();
img_6_on.src = "/images/index-6b.gif";

img_7= new Image();
img_7.src = "/images/index-7a.gif";
img_7_on = new Image();
img_7_on.src = "/images/index-7b.gif";

img_8= new Image();
img_8.src = "/images/index-8a.gif";
img_8_on = new Image();
img_8_on.src = "/images/index-8b.gif";