$(document).ready(function() {
	$('a[href=#building]').click(function() {
		$('html, body').animate({
			scrollTop: 0
		}, 'slow');
		return false;
	});
});


function MM_openBrWindow(theURL, winName, features) { //v2.0
	window.open(theURL, winName, features);
}

function MM_preloadImages() { //v3.0
	var d = document;
	if (d.images) {
		if (!d.MM_p) d.MM_p = new Array();
		var i, j = d.MM_p.length,
			a = MM_preloadImages.arguments;
		for (i = 0; i < a.length; i++)
		if (a[i].indexOf("#") != 0) {
				d.MM_p[j] = new Image;
				d.MM_p[j++].src = a[i];
			}
	}
}

function MM_swapImgRestore() { //v3.0
	var i, x, a = document.MM_sr;
	for (i = 0; a && i < a.length && (x = a[i]) && x.oSrc; i++) x.src = x.oSrc;
}

function MM_findObj(n, d) { //v4.01
	var p, i, x;
	if (!d) d = document;
	if ((p = n.indexOf("?")) > 0 && parent.frames.length) {
		d = parent.frames[n.substring(p + 1)].document;
		n = n.substring(0, p);
	}
	if (!(x = d[n]) && d.all) x = d.all[n];
	for (i = 0; !x && i < d.forms.length; i++) x = d.forms[i][n];
	for (i = 0; !x && d.layers && i < d.layers.length; i++) x = MM_findObj(n, d.layers[i].document);
	if (!x && d.getElementById) x = d.getElementById(n);
	return x;
}

function MM_swapImage() { //v3.0
	var i, j = 0,
		x, a = MM_swapImage.arguments;
	document.MM_sr = new Array;
	for (i = 0; i < (a.length - 2); i += 3)
	if ((x = MM_findObj(a[i])) != null) {
			document.MM_sr[j++] = x;
			if (!x.oSrc) x.oSrc = x.src;
			x.src = a[i + 2];
		}
}

// BackScrollイベント処理


function doScroll(targetID) {

	var targetY = bytefx.$position(document.getElementById(targetID)).y;


	var Obj = getScroll();
	var maxY = Obj.docH - Obj.winH;
	if (targetY > maxY) {
		targetY = maxY;
	}
	targetY -= 40;
	var pos = getScrollPosition();
	window.scrollTo(780, Math.min(Math.floor(pos.y + (pos.y / 5) + 10), targetY));
	if (pos.y < targetY) {

		window.setTimeout("doScroll('" + targetID + "')", 35);
		return false;
	}
}

// スクロール量を取得し、オブジェクトとして返す


function getScrollPosition() {
	var obj = new Object();
	obj.y = document.body.scrollTop || document.documentElement.scrollTop;
	return obj;
}

function getScroll() {　
	var Obj = new Object();　
	var scrollX1 = scrollX2 = scrollX3 = scrollY1 = scrollY2 = scrollY3 = docW1 = docW2 = docH1 = docH2 = winW1 = winW2 = winW3 = winH1 = winH2 = winH3 = 0;
	var IE = '\v' == 'v';

	　
	if (IE) {　　scrollX1 = document.documentElement.scrollLeft;　　scrollY1 = document.documentElement.scrollTop;　　docW1 = document.documentElement.scrollWidth;　　docH1 = document.documentElement.scrollHeight;　　winW1 = document.documentElement.clientWidth;　　winH1 = document.documentElement.clientHeight;　
	}　
	if (document.body) {　　scrollX2 = document.body.scrollLeft;　　scrollY2 = document.body.scrollTop;　　docW2 = document.body.scrollWidth;　　docH2 = document.body.scrollHeight;　　winW2 = document.body.clientWidth;　　winH2 = document.body.clientHeight;　
	}　scrollX3 = window.scrollX;　scrollY3 = window.scrollY;　winW3 = window.innerWidth;　winH3 = window.innerHeight;　Obj.scrollX = Math.max(scrollX1, Math.max(scrollX2, scrollX3));　Obj.scrollY = Math.max(scrollY1, Math.max(scrollY2, scrollY3));　Obj.docW = Math.max(docW1, docW2);　Obj.docH = Math.max(docH1, docH2);　Obj.winW = Math.min(winW1, Math.min(winW2, winW3));　Obj.winH = Math.min(winH1, Math.min(winH2, winH3));　
	return Obj;
}