I want to tile an image that is a photograph of some planks of wood. The only problem is, it is obviously a tiled image of wood, which becomes even more apparent when you scroll over the entire website and see the same markings in the wood over and over again. So, my question is, is there a way to stagger a background image randomly in the y-axis? This would make it look as though the image was not repeated every 100 pixels or so (even though it is). Is there a way to do this? Thank you in advance!
Edit: For example, my website, here, the background is not staggered. If you scroll to the bottom, you can see where the texture repeats. How do I fix this?