var header_imageTags = '<a href="/jp/search/detail/sightseeing_2150.html"'
+ ' title="慶沢園の詳細を開きます">'
+ '<img src="/update/images/header_image_octb.jpg" alt="慶沢園" width="800" height="120" /><\/a>';

document.write(header_imageTags);