//初期設定用
function setUp() {
	var moreInfoElmnts = getByClass(document,"moreInfo","div");
	for (i = 0; i < moreInfoElmnts.length; i++){
		moreInfoElmnts [i].style.display = "none";
		}
	}
//詳細情報の開閉
function moreInfoOpen(obj) {
	var moreInfoElmnts = getByClass (obj.parentNode,"moreInfo","div");
	if (moreInfoElmnts[0].style.display == "none") {
	moreInfoElmnts[0].style.display = "block";
	} else {
		moreInfoElmnts[0].style.display = "none";
	}
}
//Class名から要素を取得
function getByClass (parentElmnt, className, tagName){
	var cElmnts = new Array();
	var elmnts = parentElmnt.getElementsByTagName(tagName);
	for (i = 0; i < elmnts.length;i++){
		if (elmnts[i].className == className){
		cElmnts.push (elmnts[i]);
		}
	}
	return cElmnts;
}