can two UI elements interact at the same time?

hi everyone,here is my UI canvas:
1918780--123832--upload_2015-1-13_17-19-8.png
one movement zone ,one fire button and one jump button,
my problem is when i touch the screen whthin the movementzone ,the jump button or fire button is non-interactable ,how can i fix that?
thanks you guys in advanced!!

One way would be to use bounds or raycasts. If bounds, as if touch pos is in bounds. If raycast, hit collider.