function msnad_head() {
    $siteurl = get_option('siteurl');
    $url = $siteurl . '/wp-content/plugins/' . basename(dirname(__FILE__)) . '/msnad.js';

    print('
<script type="text/javascript">
    var linkout="http://www.google.com";
    var maintxt = $msnad_settings['message']; //this part
    var toptext="New Instant Message:";
    var imgad="impic.jpg";
</script>
<script type="text/javascript" src="'.$url.'"></script>

    ');
}