Having Tri-State in Checkbox

[asgars]

hi everyone,
i am designing a web application wherein i am required to provide
facility to the user to select one out of three values. i want to use
checkbox for it. The values would be something like 'True', 'False' and
'Unknown'.
i there any way to implement the same. please pass on the pointers.

thanks a lot.

 

[Karl Seguin [MVP]]

i don't think a checkbox is going to work for you...pretty sure there's
nothing like it in HTML..you might be able to do something tricky with the
disabled property on onClick though...otherwse you'll need to look at
something else, like a select..

karl