function data_sep(r_buff,seg_no)
{
	var ren_buff = r_buff + ",";
	var s_len = 0;
	var e_len = 0;
	for(i=0; i<seg_no + 1; i++)
	{
		
		e_len = ren_buff.indexOf(",",s_len);
		if ( e_len == -1)
		{
			return("");
		}
		if ( seg_no == i)
		{
			return(ren_buff.substring(s_len,e_len));
		}
		s_len = e_len + 1;
	}
	return("");
}

var key;
var d_no;

function set_c( key, d_no)
{
	if(d_no == "" && d_no != "0")
	{
		d_no = "%%DEL_COOKIE%%";
	}
	if(d_no == "%%DEL_COOKIE%%")
	{
		var expiresDate = new Date();
		expiresDate.setTime(expiresDate.getTime() - 100);
		document.cookie = key + "=" + escape("D") + ";" + "expires=" + expiresDate.toGMTString() + ";";
		return("");
	}
	var expiresDate = new Date();
	expiresDate.setTime(expiresDate.getTime() + 60 * 60 * 24 * 500 * 1000);
	document.cookie = key + "=" + escape(d_no) + ";" + "expires=" + expiresDate.toGMTString() + ";";
}

var start;
var end;

function get_c(key)
{
	tmp = document.cookie + ";";
	tmp1 = tmp.indexOf(key,0);
	if(tmp1 != -1)
	{
		tmp = tmp.substring(tmp1, tmp.length);
		start = tmp.indexOf("=",0) + 1;	
		end = tmp.indexOf(";",start);
		return(unescape(tmp.substring(start,end)));
	}
	return("");
}