/*-------------------------------------------------------------------------
   쿠키 가져오기
  -------------------------------------------------------------------------*/
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 "";
}


/*-------------------------------------------------------------------------
   쿠키 생성
  -------------------------------------------------------------------------*/
function setCookie( name, value, expiredays ) { 

		if(expiredays != null){
			var todayDate = new Date(); 
			todayDate.setDate(todayDate.getDate() + expiredays);
			document.cookie = name + "=" + escape( value ) + "; path=/; expires=" + todayDate.toGMTString() + ";";
		}else{
			document.cookie = name + "=" + escape( value ) + "; path=/;";
		}
} 

/*-------------------------------------------------------------------------
   쿠키 삭제
  -------------------------------------------------------------------------*/
function delCookie (name) {  
		var exp = new Date();  
		exp.setTime (exp.getTime() - 1);  
		var cval = getCookie (name);  
		document.cookie = name + "=" + cval + "; expires=" + exp.toGMTString();
}