I'm trying to create a dragable canvas using JavaScript and HTML.
I'm quite familiar with HTML but still learning the JavaScript and Canvas thing.

My guess for the HTML javascript is (which isn't working right)

Code:
<script src="example.js"  class="drag-image" id="draggable"/></script>
Where example.js is the code for a simple Hello World canvas that I want to display on the webpage and then drag around.

Any tips would be appreciated.