function confirmlocation(obj){
	if(confirm('本当に削除しますか？')){
		if(obj.href){
			var query = obj.href.lastIndexOf('?');
			var fragment = obj.href.lastIndexOf('#');
			if(fragment > 0){
				obj.href = obj.href.substring(0,fragment) + ((query > 0) ? '&' : '?') + 'confirm=1' + obj.href.substring(fragment);
			}else{
				obj.href = obj.href + ((query > 0) ? '&' : '?') + 'confirm=1';
			}
			return true;
		}
	}
	return false;
}
function delete_check(id, editid, link){
	mycon = confirm('本当に削除しますか');
	if(mycon==true){
		location.replace(link+".php?id="+id+"&mode=deleteall&editid="+editid);
	}
	else {
		return false;
	}
}
function delete_main(id, link){
	mycon = confirm('本当に削除しますか');
	if(mycon==true){
		location.replace(link+".php?id="+id+"&mode=deleteall");
	}
	else {
		return false;
	}
}
function date_check(){
	if (!document.getElementById("year")){
		year="";
	}
	else {
		year = document.getElementById("year").value;
	}
	if (!document.getElementById("month")){
		month="";
	}
	else {
		month = document.getElementById("month_n").value;
	}
	var r = new Ajax.Request(
		"date.php",
		{
			"method": "get",
			"parameters": "year="+year+"&month="+month,
			onComplete: function(request0) {
				data = request0.responseText;
				document.getElementById("month").innerHTML= data;
				document.getElementById("month").outerHTML= '<select name="date_month" id="month"><option value="">選択</option>'+data+'</select>';
			}
		}
	);
}