add javascript to Blogger

There are many methods proposed at 
https://stackoverflow.com/questions/6449733/how-can-i-add-javascript-inside-blogger

The CDATA method above seemed to work for me, from HTML view. 

And preventdefault for stopping the scroll to the top of the page - used 

return false; 

instead, working for me on Chrome also.

https://stackoverflow.com/questions/13003044/href-going-to-top-of-page-prevent