function preLoad() {
    ;
}
function changeImage(fileName, imageName) {
    ;
}

var imageDir = "http://www.playcare.jp/img/";
var loadList;
var action = "off";
function preLoad() {
	loadList = new Array("course12.gif",
		"course22.gif",
		"leader_offer2.gif",
		"skillup_offer2.gif",
		"magazine_offer2.gif"
	);
	onImages = new Array();
	for (field in loadList)
	{
		onImages[field] = new Image();
		onImages[field].src = imageDir + loadList[field];
	}
		action = "on";
	}
	function changeImage(fileName, imageName)
	{
		if (action == "on") {
			document.images[imageName].src = imageDir + fileName;
		}
	}


function getScrollLeft() { 
	if ((navigator.appName.indexOf("Microsoft Internet Explorer",0) != -1)) {
	return document.body.scrollLeft;
	} else if (window.pageXOffset) {
		return window.pageXOffset;
	} else {
		return 0;
	}
}
function getScrollTop() { 
	if ((navigator.appName.indexOf("Microsoft Internet Explorer",0) != -1)) {
		return document.body.scrollTop;
	} else if (window.pageYOffset) {
		return window.pageYOffset;
	} else {
		return 0;
	}
}
var pageScrollTimer;
function pageScroll(toX,toY,frms,cuX,cuY) { 
	if (pageScrollTimer) clearTimeout(pageScrollTimer);
	if (!toX || toX < 0) toX = 0;
	if (!toY || toY < 0) toY = 0;
	if (!cuX) cuX = 0 + getScrollLeft();
	if (!cuY) cuY = 0 + getScrollTop();
	if (!frms) frms = 6;
	if (toY > cuY && toY > (getAnchorPosObj('end','enddiv').y) - getInnerSize().height) toY = (getAnchorPosObj('end','enddiv').y - getInnerSize().height) + 1;
	cuX += (toX - getScrollLeft()) / frms; if (cuX < 0) cuX = 0;
	cuY += (toY - getScrollTop()) / frms;  if (cuY < 0) cuY = 0;
	var posX = Math.floor(cuX);
	var posY = Math.floor(cuY);
	window.scrollTo(posX, posY);
	if (posX != toX || posY != toY) {
		pageScrollTimer = setTimeout("pageScroll("+toX+","+toY+","+frms+","+cuX+","+cuY+")",16);
	}
}
function jumpToPageTop() { 
	pageScroll(0,0,3);
}