var bMouseOver = false;
var iWaitTime = 2500;
var beloop = 1;
var loop = 1;
var totObjCnt;

function getObject(objectId){ // checkW3C DOM, then MSIE 4, then NN 4.
	if(document.getElementById && document.getElementById(objectId)){ return document.getElementById(objectId);	}
	else if (document.all && document.all(objectId)){ return document.all(objectId); }
	else if (document.layers && document.layers[objectId]){	return document.layers[objectId]; }
	else{ return false; }
}
// ½ºÅ©·Ñ ½ÃÀÛ
function startscroll(totCnt) {
	totObjCnt = totCnt;

	if (bMouseOver == false) {
		window.setInterval('scrolling()', iWaitTime);
	} else {
		scrolling();
	}
}

// ½ÇÁ¦·Î ½ºÅ©·Ñ ÇÏ´Â ºÎºÐ
function scrolling()
{
	if (!bMouseOver)
	{	
		var obj = getObject("BtnScrollNum0" + loop);
		var viewObj = getObject("ScrollIMG0" + loop);

		viewObj.style.display = "block";
		obj.src = "/02eng/img/main/btn_scroll_num0"+ loop + "_on.gif";

		for(var i = 1; i <= totObjCnt; i++) {
			if(i == loop) continue;

			var tmpobj = getObject("BtnScrollNum0" + i);
			var tmpviewObj = getObject("ScrollIMG0" + i);

			tmpviewObj.style.display = "none";
			tmpobj.src = "/02eng/img/main/btn_scroll_num0" + i + "_off.gif";
		}
		
		loop++;
		if(loop > totObjCnt) loop = 1;
	}
}
function overImage(imgNum) {
	beloop = loop;

	var obj = getObject("BtnScrollNum0" + imgNum);
	var viewObj = getObject("ScrollIMG0" + imgNum);
	var scrollNum = parseInt(imgNum) - 1;

	viewObj.style.display = "block";
	obj.src =  "/02eng/img/main/btn_scroll_num0" + imgNum + "_on.gif";

	loop = imgNum;
	for(var i = 1; i <= totObjCnt; i++) {
		if(i == loop) continue;

		var tmpobj = getObject("BtnScrollNum0" + i);
		var tmpviewObj = getObject("ScrollIMG0" + i);

		tmpviewObj.style.display = "none";
		tmpobj.src =  "/02eng/img/main/btn_scroll_num0"+ i + "_off.gif";
	}

	bMouseOver = true;
}

function outImage(imgNum) {
	var obj = getObject("BtnScrollNum0" + imgNum);
	var viewObj = getObject("ScrollIMG0" + imgNum);
	var movingObj = getObject("ScrollIMG0" + imgNum);

	viewObj.style.display = "none";
	movingObj.style.display = "block";
	obj.src =  "/02eng/img/main/btn_scroll_num0"+ imgNum + "_off.gif";

	loop = beloop - 1;
	if(loop == 0){ loop = 1; }

	bMouseOver = false;
	scrolling();
}