iEFdev

// A modified version of http://snipplr.com/view/30551/ by birnamdesigns

/**
* Function to open links to external sites in new windows.
* The 'target' attribute, is not part of xhtml 1.* strict.
* A modified version of: http://snipplr.com/view/30551/
* Added a short check for class="ext" to control local links as well.
*/
window.addEvent('domready', function() {
    var currentDomain = window.location.host;
    $(document.body).addEvent('click', function(evt) {
        var target = $(evt.target);
        if (target.get('tag') !== 'a') {
            target = target.getParent();
        }

        if (target && target.get('tag') === 'a' && target.get('href').test('http') && !target.get('href').test(currentDomain) || target && target.hasClass('ext')) {
            window.open(target.get('href')); return false;
        }
    });
});

// Example local link: Add "ext" to the class.
// <a href="http://yoursite.com/" class="foo ext bar">Local link</a>