title: Inserting script and link tag inside the header tag
body: <p>Is it possible to insert/generate <code>&lt;Script&gt;</code> and <code>&lt;Link&gt;</code> tag inside the <code>&lt;Header&gt;</code> using only Javascript or DOM (<em>not JQuery</em>) when the page load or by just including one <code>&lt;Script&gt;</code> tag inside the <code>&lt;Header&gt;</code> and do it from there? And would still allow us to debug it and avoid duplicates if just in case we already added one similar <code>&lt;Script&gt;</code> or <code>&lt;Link&gt;</code> in the <code>&lt;Header&gt;</code>?</p>
  
  <p>For example:</p>
  
  <p>Before</p>
  
  <pre><code>&lt;Header&gt;
     &lt;script src="Scripts/Generate.js" type="text/javascript"&gt;&lt;/script&gt;
  &lt;/Header&gt;
  </code></pre>
  
  <p>After</p>
  
  <pre><code>&lt;Header&gt;
     &lt;script src="Scripts/Generate.js" type="text/javascript"&gt;&lt;/script&gt;
     &lt;script src="Scripts/Script1.js" type="text/javascript"&gt;&lt;/script&gt;
     &lt;script src="Scripts/Script2.js" type="text/javascript"&gt;&lt;/script&gt;
     &lt;link href="CSS/Css1.css" rel="stylesheet" type="text/css" /&gt;
     &lt;link href="CSS/Css2.css" rel="stylesheet" type="text/css" /&gt;
  &lt;/Header&gt;
  </code></pre>
  
  <p>Any advice or answers would help me.</p>