Check for IP address

[Drakenheart26]

I don't know if this has been suggested yet but here it is.

i fed my pets from my account on firefox
then i was testing if the links work (on my website) and was clicking them on another browser (internet explorer) both the webpage, and the browsers are on my computer, which means that there can be multiple clicks that are from the same computer... i would heavily sugest adding a feature that checks IP address...

I looked around on the script and still have no idea how this could be done :( plus I think that other users would like to have this as well.