// 初期設定用（詳細情報にdisplayを与える）
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;
}