I'm using the apple iPad. On this device, I am unable to upload an image from the iPad (the 'choose file' button is grayed out). is this a known limitation for iPads?

For my previous post in the "who's who" section, I used my son's laptop. Do let me know if someone is aware of the iPad issue. The other available option is to upload from a URL. If that's the only solution, I'll try to find online space to upload pictures from, when needed.

Looking forward to suggestions.

Thanks!
James