Adding JS file to head

gistfile1.txt

<reference name="before_body_end">
  <block type="core/text" name="sharpspring.form">
    <action method="setText">
      <text><![CDATA[<!-- SharpSpring Form for Contact Us -->
<script>// <![CDATA[
    var ss_form = {'account': 'MzIxNgQA', 'formID': 'S022NLG0sDDSNTY2NtU1sUxK1bVISzHRNbQwS000MTFJS0y2AAA'};
    ss_form.domain = 'app-1DN7CXM.sharpspring.com';
    // ss_form.hidden = {'Company': 'Anon'}; // Modify this for sending hidden variables, or overriding values
// ]]></script>
<script type="text/javascript" src="https://koi-1DN7CXM.sharpspring.com/client/form.js?ver=1.1.1"></script>]]></text>
    </action>
 </block>
</reference>