function SelectChange(v) {

	len = window.document.select.elements["city"].length;
	for(i=0; i<len; i++) {
		document.select.elements["city"].options[0]=null;
	}
	
	city_div = new Array();
	
	area = new Array();
		area["1"] = "北海道";
		area["2"] = "東北";
		area["3"] = "関東";
		area["4"] = "東京";
		area["5"] = "甲信越";
		area["6"] = "北陸";
		area["7"] = "東海";
		area["8"] = "関西";
		area["9"] = "中国";
		area["10"] = "四国";
		area["11"] = "九州・沖縄";
	
	//北海道
	city1=new Array();
		city1["1"] = "北海道";
	//東北
	city2=new Array();
		city2["2"] = "青森県";
		city2["3"] = "岩手県";
		city2["4"] = "宮城県";
		city2["5"] = "秋田県";
		city2["6"] = "山形県";
		city2["7"] = "福島県";
		
	//関東
	city3=new Array();
		city3["8"] = "茨城県";
		city3["9"] = "栃木県";
		city3["10"] = "群馬県";
		city3["11"] = "埼玉県";
		city3["12"] = "千葉県";
		city3["13"] = "東京都";
		city3["14"] = "神奈川県";
	//東京
	city4=new Array();
		city4["13"] = "東京都";
		
	//甲信越
	city5=new Array();
		city5["15"] = "山梨県";
		city5["16"] = "長野県";
		city5["17"] = "新潟県";
		
	//北陸
	city6=new Array();
		city6["22"] = "富山県";
		city6["23"] = "石川県";
		city6["24"] = "福井県";
		
	//東海
	city7=new Array();
		city7["18"] = "岐阜県";
		city7["19"] = "静岡県";
		city7["20"] = "愛知県";
		city7["21"] = "三重県";
	
	//関西
	city8=new Array();
		city8["25"] = "滋賀県";
		city8["26"] = "京都府";
		city8["27"] = "大阪府";
		city8["28"] = "兵庫県";
		city8["29"] = "奈良県";
		city8["30"] = "和歌山県";
	//中国
	city9=new Array();
		city9["31"] = "鳥取県";
		city9["32"] = "島根県";
		city9["33"] = "岡山県";
		city9["34"] = "広島県";
		city9["35"] = "山口県";
		
	//四国
	city10=new Array();
		city10["36"] = "徳島県";
		city10["37"] = "香川県";
		city10["38"] = "愛媛県";
		city10["39"] = "高知県";
		
	//九州沖縄
	city11=new Array();
		city11["40"] = "福岡県";
		city11["41"] = "佐賀県";
		city11["42"] = "長崎県";
		city11["43"] = "熊本県";
		city11["44"] = "大分県";
		city11["45"] = "宮崎県";
		city11["46"] = "鹿児島県";
		city11["47"] = "沖縄県";
	
	if (v == '1') { city_div = city1; }
	if (v == '2') { city_div = city2; }
	if (v == '3') { city_div = city3; }
	if (v == '4') { city_div = city4; }
	if (v == '5') { city_div = city5; }
	if (v == '6') { city_div = city6; }
	if (v == '7') { city_div = city7; }
	if (v == '8') { city_div = city8; }
	if (v == '9') { city_div = city9; }
	if (v == '10') { city_div = city10; }
	if (v == '11') { city_div = city11; }

	flg = 0;
	for (i in city_div) {
		if (flg == 0) {
		document.select.elements["city"].options[flg]=new Option('▼' + area[v] + 'から選択','');
		flg++;
		}
		document.select.elements["city"].options[flg]=new Option(city_div[i],i);
		flg++;
	}
	if (city_div.length == 0) {
		document.select.elements["city"].options[flg]=new Option('選択してください','');
	}
	
	return false;
}


function BoxChecked(check){
	var count;
	
	if (!document.detail.elements["cd[]"].length) {
		document.detail.elements["cd[]"].checked = check;	//チェックボックスをON/OFFにする
	} else {
		for(count = 0; count < document.detail.elements["cd[]"].length; count++){
			document.detail.elements["cd[]"][count].checked = check;	//チェックボックスをON/OFFにする
		}
	}
	return false;
}


function BoxChecked_chk(){
	var count;
	var flg = 0;
	for(count = 0; count < document.detail.elements["cd[]"].length; count++){
		if (document.detail.elements["cd[]"][count].checked == true) { flg++; }
	}
	if (flg == 0 && document.detail.elements["cd[]"].checked == true) { flg++; }

	if (flg == 0) {
		alert("ひとつもチェックされていません。\n詳細を表示したい情報をチェックして下さい。");
		return false;
	} else {
		return true;
	}
}