var scrollerheight=100;		// ½ºÅ©·Ñ·¯ÀÇ ¼¼·Î 
	var html,total_area=0
	var scroll_interval;
	
	var scrollspeed = 1;		// Scrolling ¼Óµµ         
	var waitingtime = 3000;		// ¸ØÃß´Â ½Ã°£
	var s_tmp = 0, s_amount = 20;
	var startPanel=0, n_panel=0, i=0;
	var scroll_img_view_check = 0;

	function startscroll()
	{ // ½ºÅ©·Ñ ½ÃÀÛ
		i=0;
		for (i in scroll_content)
			n_panel++;
			
		n_panel = n_panel -1 ;
		startPanel = Math.round(Math.random()*n_panel);
		if(startPanel == 0)
		{
			i=0;
			for (i in scroll_content) 
				insert_area(total_area, total_area++); // area »ðÀÔ
		}
		else if(startPanel == n_panel)
		{
			insert_area(startPanel, total_area);
			total_area++;
			for (i=0; i<startPanel; i++) 
			{
				insert_area(i, total_area); // area »ðÀÔ
				total_area++;
			}
		}
		else if((startPanel > 0) || (startPanel < n_panel))
		{
			insert_area(startPanel, total_area);
			total_area++;
			for (i=startPanel+1; i<=n_panel; i++) 
			{
				insert_area(i, total_area); // area »ðÀÔ
				total_area++;
			}
			for (i=0; i<startPanel; i++) 
			{
				insert_area(i, total_area); // area »ðÀÔ
				total_area++;
			}
		}
		scroll_interval = setInterval("scrolling()", waitingtime);
	}

	function scrolling(){ // ½ÇÁ¦·Î ½ºÅ©·Ñ ÇÏ´Â ºÎºÐ
		if (scroll_content_act)
		{
			for (i=0;i<total_area;i++){
				tmp = document.getElementById('scroll_area'+i).style;
				tmp.top = parseInt(tmp.top)-scrollspeed;
				if (parseInt(tmp.top) <= -scrollerheight){
					tmp.top = scrollerheight*(total_area-1);
				}
			}
			
			if (s_tmp++ >= (s_amount - 1)){
				scroll_img_view_check++;
			
				//if (scroll_img_view_check%2 == 0)
				//	set_media_img();
				
				clearInterval(scroll_interval);
				s_tmp = 0;
				scroll_interval = setInterval("scrolling()", waitingtime);
				return;
			}
			

		}
		clearInterval(scroll_interval);
		scroll_interval = setInterval("scrolling()", 1);
	}

	function scrolling_next(){ // ½ÇÁ¦·Î ½ºÅ©·Ñ ÇÏ´Â ºÎºÐ
		for (i=0;i<total_area;i++){
			tmp = document.getElementById('scroll_area'+i).style;
			var start = tmp.top;
			if (parseInt(tmp.top) <= 0) {
				tmp.top = scrollerheight*(total_area - 1);
			} else {
				if (parseInt(tmp.top)%scrollerheight == 0)
					tmp.top = parseInt(parseInt(tmp.top)/scrollerheight - 1)*scrollerheight;
				else
					tmp.top = parseInt(parseInt(tmp.top)/scrollerheight)*scrollerheight;
			}
		}
		clearInterval(scroll_interval);
		s_tmp = 0;
		scroll_interval = setInterval("scrolling()", waitingtime);
	}

	function insert_area(idx, n){ // area »ðÀÔ
		html='<ul style="left: -20px; position: absolute; top: '+(scrollerheight*n)+'px" id="scroll_area'+n+'" class="circle">\n';
		html+=scroll_content[idx]+'\n';
		html+='</ul>\n';
		document.write(html);
	}