Using window.opener to refer to Parent CRM window's field

There are many ways you could go to the parent CRM window, but this is what I prefer. At first, I followed the SDK example, but then I invented my own. You could follow the SDK if you will?

Even though it is a little JavaScript but the challenge here is to know if the parent window is the one YOU are looking for?

So here is a little chunk of code that confirms you the Parent Window.

---

if(window.opener) //checks if current window has a parent window
{
   var oParentForm = window.opener.parent.document.getElementById('crmForm');
   if(oParentForm) //This confirms if the parent window is a CRM form
   {
      // Now try to access a field in the parent form
      // like name attribute in Account entity
      if(oParentForm.all.name) //This ensures you have reached the form you're looking for
      {
         // Proceed with your code
      }
   }
}

---

There could be other methods too, like checking the Object Type Code of the parent form instead of the 'name' field.

More ideas are welcome, don't hesitate, but share.