Add a div with id = "insertTwnlCalModule" in the body tag
Add file "twnlCal.js" in footer of the page.
<script type="text/javascript" src="(your-path)/twnlCal.js" defer></script>For direct rendering of the JS file, you can use this code if(window.twnlInitRender) { window.twnlInitRender(); }