/**
 * File: external.js
 * Modified by: Brian Borowski
 * Original from: http://www.brucelawson.co.uk/2005/opening-links-in-new-windows-in-xhtml-strict-2/
 * Date created: October 12, 2008
 * Date last modified: October 12, 2008
 */
function externalLinks() {
    var objCurrent, objReplacement;

    if (document.getElementsByTagName) {
        var objAnchors = document.getElementsByTagName('a');

        for (var iCounter = 0; iCounter < objAnchors.length; iCounter++) {
            if (objAnchors[iCounter].getAttribute('href') && objAnchors[iCounter].getAttribute('rel') == 'external') {
                objAnchors[iCounter].onclick = function(event) { return launchWindow(this, event); }
                objAnchors[iCounter].onkeypress = function(event) { return launchWindow(this, event); }

                /* Pass on this for now. Though it meets standards, it just does not look right...
                if (document.replaceChild) {
                    objCurrent = objAnchors[iCounter].firstChild;
                    if (objCurrent.nodeType == 3) { // Text node
                        objReplacement = document.createTextNode(objCurrent.data + ' (opens in a new window)');
                        objAnchors[iCounter].replaceChild(objReplacement, objCurrent);
                    } else if (objCurrent.alt) { // Current element is an image
                        objReplacement = objCurrent;
                        objReplacement.alt = objCurrent.alt + ' (opens in a new window)';
                        try {
                            objAnchors[iCounter].replaceChild(objReplacement, objCurrent);
                        } catch(e) { }
                    }
                }
                */
            }
        }
    }
}

function launchWindow(objAnchor, objEvent) {
    var iKeyCode;

    if (objEvent && objEvent.type == 'keypress') {
        if (objEvent.keyCode) {
            iKeyCode = objEvent.keyCode;
        } else if (objEvent.which) {
            iKeyCode = objEvent.which;
        }
        if (iKeyCode != 13 && iKeyCode != 32) {
            return true;
        }
    }
    return !window.open(objAnchor);
}