How can I log and count the users who open docs in library

Hi,

I am using office 365\SharePoint online had a small requirement

where users need to get logged while opening document ( i need count how many times user open document) , there is an auditing but office 365 doesn’t support open or download.

How do i achieve with client side scripting via CEWP using javascript or jQuery ?

Can anyone help me out pelase.

Thanks,

Manoj.