how to disable and able a button using checkbox?

[ruky007]

When designing an agreement page and you have 2 checkbox with I accept, and the 2nd I don't accept, how can I code to able the next button when I accept and disable the button when I don't accept?

[danarj]

you can do it from javascript:
document.getEle mentById('<%= button.ClientID %>').disabled = true;

or from server side:
button.Enabled= true;