<form … onsubmit=”return checkform(this);”>
…
<p><input type=”checkbox” required name=”terms”> I accept the <u>Terms and Conditions</u></p><p><input type=”submit”></p>
</form>
<form … onsubmit=”return checkform(this);”>
…
<p><input type=”checkbox” required name=”terms”> I accept the <u>Terms and Conditions</u></p><p><input type=”submit”></p>
</form>