Any thoughts on how to mount a basking light?

[Tigergenesis]

First off, let me start by saying I am in no way handy around the house - so if the answer to my question is an obvious one, please forgive me.

I plan to purchase a 75 gallon aquarium to house a Uromastyx lizard in. I want to use a screen top. Problem is, I don't like the look of just sitting dome light fixtures on the top of the screen and then having to remove them everytime I need to get in the cage. So, I'm wondering if there is any way to mount a basking light fixture w/ light on the inside of the tank near the top on one end so it's out of reach of the Uro (keep in mind it's glass)?

Any ideas would be appreciated as I'm not very handy around the house and have no idea if this is even possible.