///
/// Opening external links in a new window
/// http://www.serve.com/apg/workshop/replacingTarget/
///
/// External links must have class="external"
///

function init() {

    // Fetch all the a elements in the document.
    var links = document.getElementsByTagName('a');

    // Loop through the a elements in reverse order
    // for speed.
    for (var i = links.length; i != 0; i--) {

        // Pull out the element for this iteration.
        var a = links[i - 1];

        // If the element doesn't have an href, skip it.
        if (!a.href) continue;

        // If the element has a className that contains
        // 'external' attach the onclick handler.
        if (a.className && (a.className.indexOf('external') != -1 || a.className.indexOf('external-unmarked') != -1)) a.onclick = PopWin;
    }
}

function PopWin(e) {

    // Accommodate IE's non-standard event handling.
    if (!e) var e = window.event;
    var a = e.target ? e.target : e.srcElement;

    // Open a new window with the link's href.
    var newwin = window.open(a.href);

    // The thought is that if the new window didn't
    // (popups blocked or whatever) we want to return
    // true so the link is follow normally. Not sure
    // if this works, but it doesn't seem to hinder.
    return !newwin;
}

onload = init;