Replacement undertray. What are these bits for?

[LewSpeight]

Just got this as my old undertray is off another bike, made by the last owner. And the battery box and stuff is bodged out of sheet metal.
So anyway, what are these two separate bits for? I presume the square one is a shelf type thing for under the battery. But no idea what the other one is for.
http://img.tapatalk.com/d/13/10/08/ugunuje3.jpg
http://img.tapatalk.com/d/13/10/08/yry5yjaj.jpg
There's also a 'rubber flap' at the front. Does that go under the tank and cover things up under there?
http://img.tapatalk.com/d/13/10/08/yguna7y2.jpghttp://img.tapatalk.com/d/13/10/08/8azy9u5y.jpg

[Bibio]

the bit with all the holes is the bottom tray for the battery. the other part is a shield that goes in before the tray and to the front.

[LewSpeight]

Oh lovely thanks.

What's the purpose of it?

[Bibio]

to hold the battery in properly

[LewSpeight]

Cool. Thanks Lance!
What's the rubber flap for?

[Bibio]

the rubber flap is to cover the rear head as a shield to help stop to much heat getting to the petrol tank.