title: How to call a JavaScript function, declared in <head>, in the body when I want to call it
body: <p>I have a working JavaScript function declared in the head of an HTML page. I know how to create a button and call the function when the user clicks the button. I want to call it myself some where on the page:</p>
  
  <pre><code>myfunction();
  </code></pre>
  
  <p>How do I do it?</p>