document.write('<script type="text/javascript" src="/js/scrollfollow/jquery.js"></script>');
document.write('<script type="text/javascript" src="/js/scrollfollow/ui.core.js"></script>');
document.write('<script type="text/javascript" src="/js/scrollfollow/jquery.scroll-follow.js"></script>');

function initHistryBack() {
	resize();
	if (document.referrer.substring(7, 21) == "www.jbat.co.jp") {
		document.getElementById("historyBack").src = "/images/historyBack_btn.gif";
		document.getElementById("historyBack").onclick = historyBackClickHandler;
		document.getElementById("historyBack").onmouseover = historyBackOverHandler;
		document.getElementById("historyBack").onmouseout = historyBackOutHandler;
	} else {
		document.getElementById("historyBack").src = "/images/historyBack_btn_disabled.gif";
	}
	document.getElementById("historyBackBlock").style.visibility = "visible";
}

function resize(initFlg) {
	document.getElementById("historyBackBlock").style.paddingTop = document.body.clientHeight / 2 - 31;
	if (document.body.clientWidth < 920) {
		document.getElementById("historyBackBlock").style.left = 0;
	} else {
		document.getElementById("historyBackBlock").style.left = (document.body.clientWidth - 772) / 2 - 75;
	}
}

function historyBackClickHandler() {
	history.back();
}

function historyBackOverHandler() {
	document.getElementById("historyBack").src = "/images/historyBack_btn_active.gif";
}

function historyBackOutHandler() {
	document.getElementById("historyBack").src = "/images/historyBack_btn.gif";
}