Help with GATC and var _gaq = _gaq || [];

Here is my GATC. It is located in the FOOTER of my application.

<script type="text/javascript">
   var _gaq = _gaq || [];

  _gaq.push(['_setAccount', 'UA-XXX-XX']);
  _gaq.push(['_setDomainName', 'mysite.com']);
  _gaq.push(['_addIgnoredRef', 'mysite.com']);
  _gaq.push(['_setCustomVar',1,'UserType','Visitor', 2]);
  _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>

开发者_C百科If I want to set some new custom variables in the BODY page, how would I do that?

<script type="text/javascript">
var _gaq = _gaq || [];
_gaq.push(['_setCustomVar',2,'NewVar','Name', 2]);
</script>

Or

<script type="text/javascript">
    _gaq.push(['_setCustomVar',2,'NewVar','Name', 2]);
</script>

To summarize:

I need to define some custom variables in the body of a page and my GATC is in the footer. I'm not quite sure the meaning of _gaq = _gaq and how it will effect this. Should it be in the snippet to define the custom variable in the body and then again in the GATC in the footer?

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var _gaq = _gaq || [];

This line uses existing _gaq array or creates a new one and assigns to _gaq if it hasn't been defined(or contains falsy value). Therefore your first option (containing _gaq assignment) is better.