Extension googleanalytics and Universal Analytics

In the following lines the template mod_googlenanalytics.html5 of extension googleanalytics for Universal Analytics (analytics.js)

Code:

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<script type="text/javascript">
        (function(i,s,o,g,r,a,m){i['GoogleAnalyticsObject']=r;i[r]=i[r]||function(){
        (i[r].q=i[r].q||[]).push(arguments)},i[r].l=1*new Date();a=s.createElement(o),
        m=s.getElementsByTagName(o)[0];a.async=1;a.src=g;m.parentNode.insertBefore(a,m)
        })(window,document,'script','//www.google-analytics.com/analytics.js','ga');

        ga('create', '<?php echo $this->id; ?>');

        ga('require', 'linker');
        ga('linker:autoLink', ['<?php echo $this->setDomainName; ?>']); // Domains that are linked from this page.

<?php if ($this->anonymizeIp): // add JS code for anonymize the IP Address from own settings or from global settings ?>
        ga('set', 'anonymizeIp', true);
<?php endif; ?>

<?php if ($this->bounceseconds): // add JS to "define" bounce rate by sending an event (hack, see http://padicode.com/blog/analytics/the-real-bounce-rate/) ?>
        setTimeout('ga(\'send\', {\'hitType\': \'event\', \'eventCategory\': \'bounce\', \'eventAction\': \'NoBounce\', \'eventValue\': \'Over <?php echo $this->bounceseconds; ?> seconds\'});',
        <?php echo $this->bounceseconds * 1000; ?>);
<?php endif; ?>

<?php if ($this->addlinktracking): /* add JS code to track all external links */ ?>
if (typeof jQuery != 'undefined') {
    var filetypes = /\.(zip|exe|dmg|pdf|doc.*|xls.*|ppt.*|mp3|txt|rar|wma|mov|avi|wmv|flv|wav)$/i;
    var baseHref = '';
    if (jQuery('base').attr('href') != undefined) baseHref = jQuery('base').attr('href');
    var hrefRedirect = '';
 
    jQuery('body').on('click', 'a', function(event) {
        var el = jQuery(this);
        var track = true;
        var href = (typeof(el.attr('href')) != 'undefined' ) ? el.attr('href') : '';
        var isThisDomain = href.match(document.domain.split('.').reverse()[1] + '.' + document.domain.split('.').reverse()[0]);
        if (!href.match(/^javascript:/i)) {
            var elEv = []; elEv.value=0, elEv.non_i=false;
            if (href.match(/^mailto\:/i)) {
                elEv.category = 'email';
                elEv.action = 'click';
                elEv.label = href.replace(/^mailto\:/i, '');
                elEv.loc = href;
            }
            else if (href.match(filetypes)) {
                var extension = (/[.]/.exec(href)) ? /[^.]+$/.exec(href) : undefined;
                elEv.category = 'download';
                elEv.action = 'click-' + extension[0];
                elEv.label = href.replace(/ /g,'-');
                elEv.loc = baseHref + href;
            }
            else if (href.match(/^https?\:/i) && !isThisDomain) {
                elEv.category = 'external';
                elEv.action = 'click';
                elEv.label = href.replace(/^https?\:\/\//i, '');
                elEv.non_i = true;
                elEv.loc = href;
            }
            else if (href.match(/^tel\:/i)) {
                elEv.category = 'telephone';
                elEv.action = 'click';
                elEv.label = href.replace(/^tel\:/i, '');
                elEv.loc = href;
            }
            else track = false;
 
            if (track) {
                var ret = true;
 
                if((elEv.category == 'external' || elEv.category == 'download') && (el.attr('target') == undefined || el.attr('target').toLowerCase() != '_blank') ) {
                    hrefRedirect = elEv.loc;
 
                    ga('send','event', elEv.category.toLowerCase(),elEv.action.toLowerCase(),elEv.label.toLowerCase(),elEv.value,{
                        'nonInteraction': elEv.non_i ,
                        'hitCallback':gaHitCallbackHandler
                    });
 
                    ret = false;
                }
                else {
                    ga('send','event', elEv.category.toLowerCase(),elEv.action.toLowerCase(),elEv.label.toLowerCase(),elEv.value,{
                        'nonInteraction': elEv.non_i
                    });
                }
 
                return ret;
            }
        }
    });
 
    gaHitCallbackHandler = function() {
        window.location.href = hrefRedirect;
    }
}
<?php endif; ?>

        ga('send', 'pageview');
</script>

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Does this mean i can combine the mod_googlenanalytics.html5 extensions code with the analytics.js, remove the mod_googlenanalytics.html5 template and place the combined code in the <head>.......???? Where do i input the analytics ID that would normally be inserted into the analytics.js snippet??

many thanks