function Notlogin(refurl){
	document.location.href="/loginform.asp?loginURL=" + refurl;
}	

function updateChar(length_limit,frm)
{
 // alert(seq)
	var comment='';
	comment = eval(frm.comment);
	var frm = document.frm;
	var length = calculate_msglen(comment.value);
	document.getElementById("textlimit").innerHTML = length;
	if (length > length_limit) {
		alert("ÃÖ´ë " + length_limit + "byteÀ̹ǷΠÃÊ°úµÈ ±ÛÀÚ¼ö´Â ÀÚµ¿À¸·Î »èÁ¦µË´Ï´Ù.");
		comment.value = comment.value.replace(/\r\n$/, "");
		comment.value = assert_msglen(comment.value, length_limit);
	}
}	
function calculate_msglen(message)
{
	var nbytes = 0;

	for (i=0; i < message.length; i++) {
		var ch = message.charAt(i);
		if(escape(ch).length > 4) {
			nbytes += 2;
		} else if (ch == '\n') {
			if (message.charAt(i-1) != '\r') {
				nbytes += 1;
			}
		} else if (ch == '<' || ch == '>') {
			nbytes += 4;
		} else {
			nbytes += 1;
		}
	}

	return nbytes;
}

function assert_msglen(message, maximum)
{
	var inc = 0;
	var nbytes = 0;
	var msg = "";
	var msglen = message.length;

	for (i=0; i<msglen; i++) {
		var ch = message.charAt(i);
		if (escape(ch).length > 4) {
			inc = 2;
		} else if (ch == '\n') {
			if (message.charAt(i-1) != '\r') {
				inc = 1;
			}
		} else if (ch == '<' || ch == '>') {
			inc = 4;
		} else {
			inc = 1;
		}
		if ((nbytes + inc) > maximum) {
			break;
		}
		nbytes += inc;
		msg += ch;
	}
	document.getElementById("textlimit").innerHTML = nbytes;
	return msg;
}