<script type="text/javascript">

    var _gaq = _gaq || [];
    _gaq.push(['_setAccount', '{{ webproperty }}']);
    _gaq.push(['_setDomainName', '{{ domainname }}']);
    {% if anonymize_ip is true %}
    _gaq.push (['_gat._anonymizeIp']);
    {% endif %}
    _gaq.push(['_trackPageview']);

    (function() {
        var ga = document.createElement('script'); ga.type = 'text/javascript'; ga.async = true;
        ga.src = ('https:' == document.location.protocol ? 'https://ssl' : 'http://www') + '.google-analytics.com/ga.js';
        var s = document.getElementsByTagName('script')[0]; s.parentNode.insertBefore(ga, s);
    })();

</script>
<script type="text/javascript">

    var _gaq = _gaq || [];
    _gaq.push(['_setAccount', '{{ webproperty }}']);
    _gaq.push(['_setDomainName', '{{ domainname }}']);
    {% if anonymize_ip %}
    _gaq.push (['_gat._anonymizeIp']);
    {% endif %}
    _gaq.push(['_trackPageview']);

    (function() {
        var ga = document.createElement('script'); ga.type = 'text/javascript'; ga.async = true;
        ga.src = ('https:' == document.location.protocol ? 'https://ssl' : 'http://www') + '.google-analytics.com/ga.js';
        var s = document.getElementsByTagName('script')[0]; s.parentNode.insertBefore(ga, s);
    })();

</script>

Fix bug in if statement
Fix bug in if statement