var bExplorer4plus = (navigator.appName == "Microsoft Internet Explorer" && navigator.appVersion.substring(0,1) >= "4");

function CheckUIElements()
{

        var yMenuFrom, yMenuTo, yButtonFrom, yButtonTo, yOffset, timeoutNextCheck;

        if ( bExplorer4plus ) {  // IE ¿ë ¼³Á¤
                //yButtonFrom = parseInt (divLinkButton.style.top, 10);
                //yButtonTo   = document.body.scrollTop + document.body.clientHeight - 55;

                yMenuFrom   = parseInt (quick.style.top, 0);
                yMenuTo     = document.body.scrollTop-5; // ·¹À̾î Á¸Àç À§Ä¡(Top)
        }

        timeoutNextCheck = 100;

		/*
        if ( Math.abs (yButtonFrom - (yMenuTo + 152)) < 6 && yButtonTo < yButtonFrom ) {
                setTimeout ("CheckUIElements()", timeoutNextCheck);
                return;
        }*/


        if ( yButtonFrom != yButtonTo ) {
                yOffset = Math.ceil( Math.abs( yButtonTo - yButtonFrom ) / 10 );
                if ( yButtonTo < yButtonFrom )
                        yOffset = -yOffset;

                if ( bExplorer4plus )
                        divLinkButton.style.top = parseInt (divLinkButton.style.top, 10) + yOffset;

                timeoutNextCheck = 10;
        }

        if ( yMenuFrom != yMenuTo ) {
                yOffset = Math.ceil( Math.abs( yMenuTo - yMenuFrom ) / 20 );
                if ( yMenuTo < yMenuFrom )
                        yOffset = -yOffset;

                if ( bExplorer4plus )
                        quick.style.top = parseInt (quick.style.top, 10) + yOffset;

                timeoutNextCheck = 10;
        }

        setTimeout ("CheckUIElements()", timeoutNextCheck);
}

function Slide()
{
        var y;

        // ÆäÀÌÁö ·Îµù½Ã À§Ä¡
        if ( bExplorer4plus ) {
                quick.style.top = document.body.scrollTop -0; //óÀ½¿¡ Á¸ÀçÇÒ À§Ä¡¸¦ ¼³Á¤ÇÑ´Ù.
                quick.style.visibility = "visible";
        }

        CheckUIElements();

        return true;
}





function get_objectTop(obj){
	if (obj.offsetParent == document.body) return obj.offsetTop;
	else return obj.offsetTop + get_objectTop(obj.offsetParent);
}

function get_objectLeft(obj){
	if (obj.offsetParent == document.body) return obj.offsetLeft;
	else return obj.offsetLeft + get_objectLeft(obj.offsetParent);
}

var bodyHeight = scrollobjHeight = 0;

function scrollBanner()
{
	if ( document.all ) window.attachEvent("onload", initSlide); // IE °æ¿ì
	else window.addEventListener("load", initSlide, false); // FF(¸ðÁú¶ó) °æ¿ì
}

function initSlide()
{
	var scroll = document.getElementById('scroll');
	var scrollTop = get_objectTop(document.getElementById('pos_scroll'));
	scroll.style.top = document.body.scrollTop + scrollTop;
	bodyHeight = document.body.scrollHeight;
	scrollobjHeight = scroll.clientHeight;
	movingSlide();
}

function movingSlide()
{
	var yMenuFrom, yMenuTo, yOffset, timeoutNextCheck;
	var scroll = document.getElementById('scroll');
	var scrollTop = get_objectTop(document.getElementById('pos_scroll'));

	yMenuFrom  = parseInt (scroll.style.top, 10);
	yMenuTo    = document.body.scrollTop + 0;
	if(yMenuTo<scrollTop) yMenuTo = scrollTop;
	timeoutNextCheck = 500;
	if (yMenuFrom != yMenuTo) {
		yOffset = Math.ceil(Math.abs(yMenuTo - yMenuFrom) / 10);
		if (yMenuTo < yMenuFrom) yOffset = -yOffset;
		scroll.style.top = parseInt (scroll.style.top, 10) + yOffset;
		timeoutNextCheck = 10;
	}
	//alert("scroll.style.pixelTop : "+scroll.style.pixelTop);
	//alert("bodyHeight : "+bodyHeight);
	//alert("scrollobjHeight : "+scrollobjHeight);
	if (scroll.style.pixelTop > bodyHeight - scrollobjHeight){
		scroll.style.top = bodyHeight - scrollobjHeight;

		}
	//alert("a");
	setTimeout ("movingSlide()", timeoutNextCheck);
}