Need help implamenting an idea.

[4x4 Mecca]

I've helped out here where ever I could, so I'm hoping someone knows the answer to this.

Is there a simple way, maybe like the post thanks hack, but modified to do the following.

I have a button/link I want pressed, it votes for my site. It is not illegal to ask for votes, and I will not hide it.

What I would like is a way to track how often someone clicks the link. They can only vote once per day per IP address. So they can vote once from work and once from home.

Is there a way to track which user clicks the link, and add a point to a certain user field.

I'm making this more complicated than it is.

Vote <---- I want a link like that to add 1 point to userfield X when ever it is clicked. It can only add 1 point if it is a unique IP address once per 24 hours. Is that possible?