function check_submit()
{
	var formobj = document.detail_search_form;
	if(formobj.keyword.value == "" && formobj.instrument.value == "" &&
		formobj.name.value == "" && formobj.person.value == "" && formobj.genre.value == "") {
		alert("詳細検索では１つ以上の入力または選択して下さい。");
		return false;
	}
	var path = document.location.pathname.split('/');
	if(path[path.length - 2] != "search") {
		document.detail_search_form.noListType.value =  "y";
	}
	document.detail_search_form.submit();
	return false;
}