function selAreaOnchange(){
	var value = document.getElementById("selArea").value;
	
	var p = [];
	if(!value){
		for(var i in pref){
			p.push(i);
		}
	}
	else{
		p = map[value];
	}
	var obj = document.getElementById('selPrefecture');
	obj.options.length = p.length + 1;
	for(var i = 0; i < p.length; i++){
		obj.options[i + 1] = new Option(pref[p[i]], p[i]);
	}
	
}	

function optionOnclick(obj) {
	if(obj.value == lastChecked){
		obj.checked = false;
		lastChecked = "";
	}
	else{
		lastChecked = obj.value;
	}

	if (document.getElementsByName('rdoOption1')[1].checked) {
		// –{“ϊ”­”„‘I‘π
		document.getElementById("selDateType").value = "2";
		
		document.getElementById("selFromYear").value = year;
		document.getElementById("selToYear").value = year;
		document.getElementById("selFromMonth").value = month;
		document.getElementById("selToMonth").value = month;
		document.getElementById("selFromDate").value = day;
		document.getElementById("selToDate").value = day;
		
	} else if (document.getElementsByName('rdoOption1')[2].checked) {
		// ‹ί“ϊ”­”„‘I‘π
		document.getElementById("selDateType").value = "2";

		var from = new Date(year, month - 1, day + 1);
		var to = new Date(year, month - 1, day + 7);			
		document.getElementById("selFromYear").value = from.getFullYear();
		document.getElementById("selToYear").value = to.getFullYear();
		document.getElementById("selFromMonth").value = from.getMonth() + 1;
		document.getElementById("selToMonth").value = to.getMonth() + 1;
		document.getElementById("selFromDate").value = from.getDate();
		document.getElementById("selToDate").value = to.getDate();
		
	} else if (document.getElementsByName('rdoOption1')[3].checked) {
		// ‹ί“ϊŒφ‰‰‘I‘π
		document.getElementById("selDateType").value = "1";
		
		var from = new Date(year, month - 1, day + 1);
		var to = new Date(year, month - 1, day + 14);			
		
		document.getElementById("selFromYear").value = from.getFullYear();
		document.getElementById("selToYear").value = to.getFullYear();
		document.getElementById("selFromMonth").value = from.getMonth() + 1;
		document.getElementById("selToMonth").value = to.getMonth() + 1;
		document.getElementById("selFromDate").value = from.getDate();
		document.getElementById("selToDate").value = to.getDate();
		
	}
}

function selFromYearOnChange() {
	// To“ϊ•t‚ͺ–’‘I‘π‚̏ꍇ
	if (document.getElementById('selToYear').value == "") {
		document.getElementById('selToYear').value = document.getElementById('selFromYear').value;
	}
}

function selFromMonthOnChange() {
	// To“ϊ•t‚ͺ–’‘I‘π‚̏ꍇ
	if (document.getElementById('selToMonth').value == "") {
		document.getElementById('selToMonth').value = document.getElementById('selFromMonth').value;
	}
}

function selFromDateOnChange() {
	// To“ϊ•t‚ͺ–’‘I‘π‚̏ꍇ
	if (document.getElementById('selToDate').value == "") {
		document.getElementById('selToDate').value = document.getElementById('selFromDate').value;
	}
}