window.addEvent('domready', function() {

    // Create external links
    $ES('a.external').each(function(item) {
        item.target = '_blank';
    });
    
    if ($('searchkeywords')) {
        $('searchkeywords').addEvent('focus', clearForm);
    }
})

function clearForm(evt)
{
    var evt = new Event(evt);
    evt.stop();
    evt.target.value = '';
    $('searchkeywords').removeEvent('focus', clearForm);
}