/**
	ÄíÅ°°ª ¹Ýȯ.
 */
function CU_getCookie(ckName) 
{ 
    var search = ckName + "="; 
    if (document.cookie.length > 0) { 
        offset = document.cookie.indexOf(search); 
        if (offset != -1) { 
            offset += search.length;
            end = document.cookie.indexOf(";", offset); 
            if (end == -1) 
                end = document.cookie.length; 
            return unescape(document.cookie.substring(offset, end)); 
        } 
    } 
} 

/**
	ÄíÅ°°ª ÀúÀå.
 */
function CU_setCookie(name, value, expiredays) 
{ 
    var todayDate = new Date(); 
    todayDate.setDate( todayDate.getDate() + expiredays ); 
    document.cookie = name + "=" + escape( value ) + "; path=/; expires=" + todayDate.toGMTString() + ";" 
}    
/**
	ÄíÅ°°ª »èÁ¦.
 */
function CU_deleteCookie(name) {  
        var exp = new Date();  
        exp.setTime (exp.getTime() - 1);  
        var cval = CU_getCookie (name);  
        document.cookie = name + "=" + cval + "; expires=" + exp.toGMTString();
}