function oldies(y)
{
    if (y.value > 0) {
        location.href = 'http://ishigakijima-triathlon.jp/' + y.value + '/';
    }
}

function je_ro(je, gl)
{
    var img = '/img/je_' + je + '_' + gl + '.gif';
    var id  = 'je_' + je;
    document.getElementById(id).src = img;
}

function externalLinks() {
    if (!document.getElementsByTagName) return;
    var anchors = document.getElementsByTagName("a");
    for (var i = 0; i < anchors.length; i++) {
        var anchor = anchors[i];
        if (anchor.getAttribute("href") &&
            anchor.getAttribute("rel") == "external")
            anchor.target = "_blank";
    }
}