function getCookieVal (offset) { 
var endstr = document.cookie.indexOf (";", offset); 
if (endstr == -1) 
endstr = document.cookie.length; 
return unescape(document.cookie.substring(offset, endstr)); 
} 
function GetCookie (name) { 
var arg = name + "="; 
var alen = arg.length; 
var clen = document.cookie.length; 
var i = 0; 
while (i < clen) { 
var j = i + alen; 
if (document.cookie.substring(i, j) == arg) 
return getCookieVal (j); 
i = document.cookie.indexOf(" ", i) + 1; 
if (i == 0) break; 
} 
return null; 
}   
function SetCookie (name, value) { 
var argv = SetCookie.arguments; 
var argc = SetCookie.arguments.length; 
var expires = (argc > 2) ? argv[2] : null; 
var path = (argc > 3) ? argv[3] : null; 
var domain = (argc > 4) ? argv[4] : null; 
var secure = (argc > 5) ? argv[5] : false; 
document.cookie = name + "=" + escape (value) + 
((expires == null) ? "" : ("; expires=" + expires.toGMTString())) + 
//((path == null) ? "" : ("; path=" + path)) + 
//((domain == null) ? "" : ("; domain=" + domain)) + 
((secure == true) ? "; secure" : ""); 
} 
function auto_show_id(name) { 
// document.login.id.value ="****";
	if(GetCookie(name) != null) 	{
		document.login.id.value = GetCookie(name);
	}else { 
		document.login.id.value =""; } 
} 
function set_id(name) { 
	var expdate = new Date (); 
	expdate.setTime (expdate.getTime() + (24 * 60 * 60 * 1000 * 31)); 
	var userid = document.login.id.value 

	if (document.login.logincheck.checked==true) {
		if (userid != "") { 
		if (confirm("ID¸¦ ÀÚµ¿ÀúÀåÇϽðڽÀ´Ï±î?")) { 
		SetCookie (name, userid, expdate); 
		//window.history.go(0); 
		   } 
		} 
	}else{
		if (userid != "") { 
		if (confirm("IDÀÚµ¿ÀúÀåÀ» »èÁ¦ÇϽðڽÀ´Ï±î?")) { 
		DeleteCookie(name);
		   } 
		} 

	}

} 
function DeleteCookie (name) { 
var exp = new Date(); 
exp.setTime (exp.getTime() - 1000000000);   
var cval = GetCookie (name); 
document.cookie =name+ "=" + cval + "; expires=" + exp.toGMTString();     
}