/* 쿠키를 생성 navigator.cookieEnabled */
function setCookie(name, value) { 
	var expiredays=30;	/* default expires 기간 설정하고 */
	var todayDate = new Date();			/* 현재시간 구하고 */
	todayDate.setDate( todayDate.getDate() + expiredays ); 
	document.cookie = name + "=" + escape( value ) + "; path=/; expires=" + todayDate.toGMTString() + ";"  /* 쿠키 설정값    */
} 

function getCookie(name) { 
	var nameOfCookie = name + "="; 
	var x = 0; 
	while ( x <= document.cookie.length ) { 
		var y = (x+nameOfCookie.length); 
		if ( document.cookie.substring( x, y ) == nameOfCookie ) { 
			if ( (endOfCookie=document.cookie.indexOf( ";", y )) == -1 ) 
			endOfCookie = document.cookie.length; 
			return unescape( document.cookie.substring( y, endOfCookie ) ); 
		} 
		x = document.cookie.indexOf( " ", x ) + 1; 
		if ( x == 0 ) 
			break; 
	} 
	return ""; 
} 

function eraseCookie(key){
	var cookieDate = new Date(2000,11,10,19,30,30);
	document.cookie = key + "=; expires="+cookieDate.toGMTString()+"; path=/";
}