IF this OR that then this

I created an if statement with OR but it doesn't seem to be working. Here is my javascript

if ((oa4.value > 0) || (oa3.value > 0 && hr.value > 0))

{

then do what's next...

I have order amount lines and lines 1-4 are filled in then other things can happen. Also if line 1-3 are filled in with values and another total value is not null then that counts too.