//--------------------------------------------------------------
// cookie保存関数（期限なし：ブラウザが閉じるまで）
//--------------------------------------------------------------
function SetCookie( key, dat )
{
	var clear_time = new Date( 2030, 1, 1 );
	var expires = clear_time.toGMTString();
	document.cookie = key + "=" + escape( dat ) + ";";
}

//--------------------------------------------------------------
// cookieからデータを取得
//--------------------------------------------------------------
function GetCookie( key )
{
	var dat = "";
	var cookies = document.cookie.split( "; " );
	for( i = 0 ; i < cookies.length ; i++ ){
		if( cookies[i].substr( 0, key.length ) == key ){
			dat = cookies[i].substr( key.length + 1, cookies[i].length );
			break;
		}
	}
	return( unescape( dat ) );
}