var header_imageTags = new Array();
var header_imageTags_num = Math.floor(Math.random()*3);

header_imageTags[0] = '<a href="/en/search/detail/sightseeing_5008.html"'
+ ' title="detail page of International House,Osaka opens">'
+ '<img src="/update/images/header_image_convention0.jpg" alt="International House,Osaka" width="800" height="120" /><\/a>';

document.write(header_imageTags[0]);