Jquery Effect Orientation

My site [login to view URL] You can see background having effect similar to this site [login to view URL] Its moving perfectly on computer but not moving on mobile devices. Can you open [login to view URL] on your mobile device and move your device. You will see the background moving. Now open my site and see the background will not move on mobile real device. Need some one to add orientation handler 5-10minutes task budget $10 will pass script to awarded freelancer