Cookie 읽 기와 쓰기 동작 을 위 한 자바 script 함수

function getCookie( name )

{

        var start = document.cookie.indexOf( name + "=" );

        var len = start + name.length + 1;

        if ( ( !start ) && ( name != document.cookie.substring( 0, name.length ) ) ) {

                return null;

        }

        if ( start == -1 ) return null;

        var end = document.cookie.indexOf( ';', len );

        if ( end == -1 ) end = document.cookie.length;

        return unescape( document.cookie.substring( len, end ) );

}



// ---------------------------------------------------- //

function setCookie( name, value, expires, path, domain, secure ) {

        var today = new Date();

        today.setTime( today.getTime() );

        if ( expires ) {

                expires = expires * 1000 * 60 * 60 * 24;

        }

        var expires_date = new Date( today.getTime() + (expires) );

        document.cookie = name+'='+escape( value ) +

                ( ( expires ) ? ';expires='+expires_date.toGMTString() : '' ) + //expires.toGMTString()

                ( ( path ) ? ';path=' + path : '' ) +

                ( ( domain ) ? ';domain=' + domain : '' ) +

                ( ( secure ) ? ';secure' : '' );

}



// ---------------------------------------------------- //

function deleteCookie( name, path, domain )

{

        if ( getCookie( name ) ) document.cookie = name + '=' +

                        ( ( path ) ? ';path=' + path : '') +

                        ( ( domain ) ? ';domain=' + domain : '' ) +

                        ';expires=Thu, 01-Jan-1970 00:00:01 GMT';

}