function change(form) 
{
	if (form.url.selectedIndex !=0)
		parent.location = form.url.options[form.url.selectedIndex].value
}

function setCookie( name, value, expiredays ) 
{
	var todayDate = new Date();
	todayDate.setDate( todayDate.getDate() + expiredays );
	document.cookie = name + "=" + escape( value ) + "; path=/; expires=" + todayDate.toGMTString() + ";"
}

function getCookie( name ) 
{
	var nameOfCookie = name + "=";
	var x = 0;
	while ( x <= document.cookie.length ) {
		var y = (x+nameOfCookie.length);
		if ( document.cookie.substring( x, y ) == nameOfCookie ) {
			if ( (endOfCookie=document.cookie.indexOf( ";", y )) == -1 )
				endOfCookie = document.cookie.length;

			return unescape( document.cookie.substring( y, endOfCookie ) );
		}

		x = document.cookie.indexOf( " ", x ) + 1;

		if ( x == 0 )
			break;
	}

	return "";
}

function onPoll(strVal,strCat) 
{
	var tp = 'research.asp';
	if (strCat > 0) 
		tp = 'researchBeta.asp';
	if (strVal >= 40) 
		window.open('https://www.duo.co.kr/pollManager/'+tp+'?ctl_id='+strVal,'poll','toolbar=no,location=no,directories=no,status=no,menubar=no,scrollbars=yes,resizable=no,width=600,height=500');
	else
		window.open('https://www.duo.co.kr/pollManager/duoPoll.asp?ctl_id='+strVal,'poll','toolbar=no,location=no,directories=no,status=no,menubar=no,scrollbars=yes,resizable=no,width=600,height=500');
}

function move1(whichlayer)
{
	tlayer=eval(whichlayer)
	if (tlayer.top>0&&tlayer.top<=num)
	{
		tlayer.top=0;
		setTimeout("move1(tlayer)",scrollspeed);
		setTimeout("move2(document.TopImageMain.document.TopImageII)",scrollspeed);
		return;
	}
	if (tlayer.top>=tlayer.document.height*-1)
	{
		tlayer.top-=num
		setTimeout("move1(tlayer)",waitingtime)
	}
	else
	{
		tlayer.top=TopImagesHeight
		tlayer.document.write(TopImages[iTop])
		tlayer.document.close()
		if (iTop==TopImages.length-1)
			iTop=0
		else
			iTop++
	}
}

function move2(whichlayer)
{
	tlayer2=eval(whichlayer)
	if (tlayer2.top>0&&tlayer2.top<=num)
	{
		tlayer2.top=0;
		setTimeout("move2(tlayer2)",scrollspeed);
		setTimeout("move1(document.TopImageMain.document.TopImageI)",scrollspeed);
		return;
	}
	if (tlayer2.top>=tlayer2.document.height*-1)
	{
		tlayer2.top-=num;
		setTimeout("move2(tlayer2)",waitingtime);
	}
	else
	{
		tlayer2.top=TopImagesHeight;
		tlayer2.document.write(TopImages[iTop]);
		tlayer2.document.close();
		if (iTop==TopImages.length-1)
			iTop=0;
		else
			iTop++;
	}
}

function move3(whichdiv)
{
	tdiv=eval(whichdiv)

	if (tdiv.style.pixelTop>0&&tdiv.style.pixelTop<=num)
	{
		tdiv.style.pixelTop=0;
		setTimeout("move3(tdiv)",scrollspeed);
		setTimeout("move4(TopImageIISpan)",scrollspeed);
		return;
	}
	if (tdiv.style.pixelTop>=tdiv.offsetHeight*-1)
	{
		tdiv.style.pixelTop-=num;
		setTimeout("move3(tdiv)",waitingtime);
	}
	else
	{
		tdiv.style.pixelTop=TopImagesHeight;
		tdiv.innerHTML=TopImages[iTop]
		if (iTop==TopImages.length-1)
			iTop=0;
		else
			iTop++;
		}
}
function move4(whichdiv){
		tdiv2=eval(whichdiv)
		if (tdiv2.style.pixelTop>0&&tdiv2.style.pixelTop<=num){
			tdiv2.style.pixelTop=0
			setTimeout("move4(tdiv2)",scrollspeed)
			setTimeout("move3(TopImageISpan)",scrollspeed)
			return
		}
		if (tdiv2.style.pixelTop>=tdiv2.offsetHeight*-1){
			tdiv2.style.pixelTop-=num
			setTimeout("move4(TopImageIISpan)",waitingtime)
		}
		else{
			tdiv2.style.pixelTop=TopImagesHeight
			tdiv2.innerHTML=TopImages[iTop]
			if (iTop==TopImages.length-1)
				iTop=0
			else
				iTop++
			}
}
function TopImageScroll(){
		if (document.all){
			move3(TopImageISpan)
			TopImageIISpan.style.top=TopImagesHeight
			TopImageIISpan.style.visibility='visible'
		}
		else if (document.layers){
			document.TopImageMain.visibility='show'
			move1(document.TopImageMain.document.TopImageI)
			document.TopImageMain.document.TopImageII.top=TopImagesHeight+num
			document.TopImageMain.document.TopImageII.visibility='show'
		}
}
function StopScroll(){
	num=0
}
function ResumeScroll(){
	num=1
}