Or, you go here: http://dcs.hyundaidealer.com/customer/index.jsp
Click "parts" in the grey navigation box to the left
Enter your Zip Code on the next screen
Select one of the dealers from the list
Click the giant picture on the next screen
Click "passenger" in the blue navigation ber
Find and click your car
Fill in the details about your car on the right side.
Then, bottom right, click the "next" icon.
From there, click "chassis".....
Not sure what you are looking for, so scroll down through the menu and select either "front brake" or "rear brake" and you should find a picture of the part and their associated part number.