page=0;

function trythese() {
	var returnValue;
		for (var i = 0, length = arguments.length; i < length; i++) {
			var lambda = arguments[i];
				try {
					returnValue = lambda();
					break;
				} catch (e) {}
		}
	return returnValue;
}

function AjaxUpdater(id, url, cbFunc) {
	var transport = trythese(
		function() {return new XMLHttpRequest()},
		function() {return new ActiveXObject('Msxml2.XMLHTTP')},
		function() {return new ActiveXObject('Microsoft.XMLHTTP')}
	);
	if (! cbFunc)
		cbFunc = {};
	if (transport) {
		transport.onreadystatechange = function() {
			if ((transport.readyState == 4) && (transport.status == 200))
			{
				document.getElementById(id).innerHTML=transport.responseText;
			}
			switch (transport.readyState) {
				case 0:
					if (cbFunc.uninitialized)
						cbFunc.uninitialized();
					break;
				case 1:
					if (cbFunc.loading)
						cbFunc.loading();
					break;
				case 2:
					if (cbFunc.loaded)
						cbFunc.loaded();
					break;
				case 3:
					if (cbFunc.interactive)
						cbFunc.interactive();
					break;
				case 4:
					if (cbFunc.complete)
						cbFunc.complete();
					break;
			}
		}
		transport.open("GET",url,true);
		transport.send(null);
	}
}

function request(url) {
	new AjaxUpdater("foo", url, {"loading": function ()
		{
			document.getElementById('wait').innerHTML='<img src="../search/wait1.gif" />������...';
			document.getElementById('wait').style.visibility = "visible";
		}, 
		"complete": function()
		{
			document.getElementById('wait').style.visibility = "hidden";
			var obj;
			obj = document.getElementById('favurl');
			if (obj) {
				obj.value = location.protocol+"//"+location.host+location.pathname+makequery()+"&p="+page;
			}
		}});
}

function loaddefault()
{
	new AjaxUpdater('pr', "../search/"+"sel.php?v=null", {"complete": loadchild });
	if (location.search != "") {
		var req;
		req = "../search/"+"ts.php"+location.search;
		request(req);
	}
}
function loadchild()
{
	var req;
	var obj;
	obj = document.getElementById('pc');
	req = "../search/"+"sel.php?v="+obj.options[obj.selectedIndex].value;
	new AjaxUpdater("ch", req);
}

function makequery()
{
	var req;
	var obj;
	obj = document.getElementById('pc');
	req = "?pc="+URLencode(obj.options[obj.selectedIndex].value)+"&cc=";
	obj = document.getElementById('cc');
	req += URLencode(obj.options[obj.selectedIndex].value)+"&q=";
	obj = document.getElementById('qu');
	req += URLencode(obj.value);
	return req;
}

function search()
{
	var req;
	req = "../search/"+"ts.php"+makequery()+"&p=0";
	request(req);
	page=0;
}
function move(pc,cc,q,p)
{
	var req;
	page = p;
	req = "../search/"+"ts.php?pc="+pc+"&cc="+cc+"&q="+q+"&p="+p;
	request(req);
	page=p;
}

// URLEncode
function URLencode(str){
 // Unicode to URL encoded UTF-8
 var i, encoded_str, char_code, padded_str;
         encoded_str = "";
         for (i = 0; i < str.length; i++){
             char_code = str.charCodeAt(i);
             if (char_code == 0x20){
                // space -> "+"
                encoded_str += "+";}
             else { // else 1
                  if (((0x30 <= char_code) && (char_code <= 0x39)) || ((0x41 <= char_code) && (char_code <= 0x5a)) || ((0x61 <= char_code) && (char_code <= 0x7a))){
		     // [0-9a-z-A-Z]
                     // no escape
                     encoded_str += str.charAt(i);
                  }
		  else if ((char_code == 0x2a) || (char_code == 0x2e) || (char_code == 0x2d) || (char_code == 0x5f)) {
		     // [.-_]
                     // no escape
                     encoded_str += str.charAt(i);
		  }
                  else { // else 2
                       // for internal unicode to UTF-8
		       // Ref. http://homepage3.nifty.com/aokura/jscript/utf8.html
		       // Ref. http://homepage1.nifty.com/nomenclator/unicode/ucs_utf.htm
                       if ( char_code > 0xffff ) {
                          encoded_str += "%" + ((char_code >> 18) | 0xf0).toString(16).toUpperCase();
                          encoded_str += "%" + (((char_code >> 12) & 0x3f) | 0x80).toString(16).toUpperCase();
			  encoded_str += "%" + (((char_code >> 6) & 0x3f) | 0x80).toString(16).toUpperCase();
			  encoded_str += "%" + ((char_code & 0x3f) | 0x80).toString(16).toUpperCase();
		       }
                       else if ( char_code > 0x7ff ) {
                          encoded_str += "%" + ((char_code >> 12) | 0xe0).toString(16).toUpperCase();
			  encoded_str += "%" + (((char_code >> 6) & 0x3f) | 0x80).toString(16).toUpperCase();
			  encoded_str += "%" + ((char_code & 0x3f) | 0x80).toString(16).toUpperCase();
                       }
                       else if ( char_code > 0x7f ) {
		          encoded_str += "%" + (((char_code >> 6) & 0x1f) | 0xc0).toString(16).toUpperCase();
			  encoded_str += "%" + ((char_code & 0x3f) | 0x80).toString(16).toUpperCase();
                       }
                       else {
                          // for ascii
                          padded_str = "0" + char_code.toString(16).toUpperCase();
                          encoded_str += "%" + padded_str.substr(padded_str.length - 2, 2);
                       }
                    } // else 2
                } // else 1
        } // for
        return encoded_str;
}