wordpress expert needed to modify small function on blog

Closed - This job posting has been filled and work has been completed.

Job Description

I want to make a small modification on my wordpress blogs : www.geekslp.com

The top 4 menu buttons:
1. Accessories
2. Apps
3. iDevice How to
4. Document & Handout

Current when mouse goes over it slides up a black pop over- I want to remove that and allow users to just click on image to lead to page.