Easy question from a real beginner

[custardcrumble]

I've just made my first MySQL DB and have managed to enter most of the fields from an HTML form into it. However, I'm having trouble with checkboxes. I have 4 boxes that I'd like to enter in to 4 separate fields with a value of 0 or 1. Unfortunately I can't find an INPUT type to do this.

Anyone able to help with the relavent HTML/ASP code?

Cheers

Dom