function f_AreaChange() {
	nSel = document.page_data.area.selectedIndex;
	if (nSel > 0) {
		code = document.page_data.area.options[nSel].value;

		nCnt = arAreaVal[code].length;

		document.page_data.dest1.length = nCnt + 1;

	} else {
		nCnt = -1;
		code = "";

		document.page_data.dest1.length = 1;
	}

	document.page_data.dest1.options[0] = 
		new Option("選択","選択");

	for (i=0; i<nCnt; i++) {
		if (arAreaTxt[code][i] == "") {
			sCity = arAreaVal[code][i];
		} else {
			sCity = arAreaTxt[code][i];
		}
		document.page_data.dest1.options[i+1] = 
			new Option(sCity,arAreaVal[code][i]);
	}

	document.page_data.dest1.options[0].selected=true;

	return false;
}

function jump() {
	if(document.page_data.dest1.value=="") {
		alert("都市を1つ以上選択してください");
		return false;
	}
	if(document.page_data.dep_month.value=="" || document.page_data.dep_day.value=="") {
		alert("出発日は必ず選択してください");
		return false;
	}
	document.page_data.gocmd.value="list";
	document.page_data.target="_self";
	document.page_data.action="http://www.toptravel.jp/cgi/data/cgi-bin/inet_tour.cgi";
	document.page_data.submit();
	return false;
}