var slideMoving; // ½ºÅ©·Ñ¸µ½Ã¿¡ ÇöÀç ½ºÅ©·Ñ¸µÀÌ ÁøÇàÁßÀΰ¡ÀÇ ¿©ºÎ
var slideSpeed = 5; // ½ºÅ©·Ñ¸µÀÇ ºü¸£±â
var slideMovingDelay = 70; // ½ºÅ©·Ñ¸µ ¿¡´Ï¸ÞÀ̼ÇÀ» À§ÇÑ ÇÔ¼ö°¡ ¹Ýº¹ È£ÃâµÉ ½Ã°£
var pgX=1; // ÀϹÝÀûÀÎ ÆäÀÌÁö¿¡¼­, ÆäÀÌ¡½Ã scrollArea°¡ Ç¥½ÃÇÏ°í ÀÖ´Â °ÍÀÌ ÇöÀç ¸î¹ø° ÆäÀÌÁöÀÎÁö¸¦ ÀúÀå.
var pX='down'; // ÆäÀÌ¡ÀÇ ÇöÀç Æ÷Ä¿½º°¡ 'up' or 'down' ·Î ÀúÀåµÊ.
var totalPage = 1; // Àüü ÆäÀÌ¡¼ö

function slideTo(objName,to){ // ÆäÀÌ¡ ¶Ç´Â ½ºÅ©·Ñ¸µ½Ã¿¡ ¿¡´Ï¸ÞÀ̼ÇÀÌ ÇÊ¿äÇÑ °æ¿ì È£ÃâµÇ´Â ÇÔ¼ö
	slideMoving = 1;
	var obj = document.getElementById(objName);
	var tmp = (!obj.style.top)?0:parseInt(obj.style.top);
	if (Math.abs(to-tmp)>=2){
		obj.style.top = (tmp+floatUp((to-tmp)/slideSpeed))+'px';
		window.setTimeout('slideTo(\''+objName+'\','+to+')',slideMovingDelay);
	} else {
		slideMoving = 0;
		obj.style.top = to;
	}	
}
function floatUp(n){ // ¼Ò¼öÁ¡ ÀÌÇϸ¦ ¹«Á¶°Ç ¿Ã¸²ÇÔ
	var tmp = parseInt(n);
	if (Math.abs(tmp-n)>0){
		if (n>0) return tmp+1;
		else return tmp-1;
	} else {
		return tmp;
	}
}
function scrollDown(s){ // ´ÙÀ½ ÆäÀÌÁö ¶Ç´Â ½ºÅ©·Ñ ´Ù¿î½Ã
	if (!slideMoving){
		var arti = document.getElementById('scrollArea');
		var arti1 = document.getElementById('scrollArea').offsetHeight;
		if (arti){      
			var wrap = document.getElementById('scrollArea').parentNode.offsetHeight;
			var totalPage = Math.ceil(arti1/wrap);
			var artiTop = arti.style.top;
			if (wrap<arti.offsetHeight){
				artiTop = artiTop?parseInt(artiTop):0;
				if (artiTop-wrap>-arti.offsetHeight){
					if (s=='slide') slideTo(arti.id,artiTop-wrap);
					else arti.style.top = artiTop-wrap;
					pgX++;
					if (totalPage<=pgX){
						document.getElementById('sp_scroll_down').innerHTML = '<img src="/images/button/btn_up01.gif" width="11" height="11" alt="ÇÏÀ§·Î°¡±â¹öÆ°">';
						pX = 'up';
					}
					if (pgX==2) {
						if (pX!='up' || totalPage==2) document.getElementById('sp_scroll_up').innerHTML = '<a href="javascript:scrollUp(\'slide\');"><img src="/images/button/btn_up02.gif" width="11" height="11" alt="»óÀ§·Î°¡±â¹öÆ°"></a>';
					}
				}
			}
		}
    
	}
}
function scrollUp(s){ // ÀÌÀü ÆäÀÌÁö ¶Ç´Â ½ºÅ©·Ñ ¾÷ ½Ã
	if (!slideMoving){
		var arti = document.getElementById('scrollArea');
		var arti1 = document.getElementById('scrollArea').offsetHeight;
		if (arti){
			var wrap = document.getElementById('scrollArea').parentNode.offsetHeight;
			var totalPage = Math.ceil(arti1/wrap);
			var artiTop = arti.style.top;
			if (wrap<arti.offsetHeight){
				artiTop = artiTop?parseInt(artiTop):0;
				if (artiTop<0){
					if (s=='slide') slideTo(arti.id,artiTop+wrap);
					else arti.style.top = artiTop+wrap;
          pgX--;
					if (pgX<=1){
						document.getElementById('sp_scroll_up').innerHTML = '<img src="/images/button/btn_up02.gif" width="11" height="11" alt="»óÀ§·Î°¡±â¹öÆ°">';
						pX = 'down';
					}
          if (totalPage-1==pgX){
						if (pX!='down' || totalPage==2) document.getElementById('sp_scroll_down').innerHTML = '<a href="javascript:scrollDown(\'slide\');"><img src="/images/button/btn_up01.gif" width="11" height="11" alt="ÇÏÀ§·Î°¡±â¹öÆ°"></a>';
					}
				}
			}
		}
	}
}