function externalWindowLinks()
{
    // Links with rel attribute = external
    $('a[rel=external]').click(function(e)
    {
        e.preventDefault();
        
        // Store the link
        var href = $(this).attr('href');
        
        // Window properties
        var windowProperties = 'status=1,toolbar=0,location=1,menubar=0,directories=0,resizable=1,scrollbars=1,height=550,width=800';
        
        // Show popup window
        window.open(href, 'window', windowProperties);
    });
}

$(document).ready(function()
{
    externalWindowLinks();
});