I am able to hide fields in the default new/edit forms using JS, but am having trouble sorting out how to do it when using customized new/edit forms with the hide/unhide function triggered by a checkbox in SP2013...

I cannot find a solid example of code to point me in the right direction; would anyone be able to assist? 

Again, this is for >SP2010 using a checkbox as a trigger. I do have access to SPD, of course no InfoPath.

Thanks for your help.