Mandatory check box before form submission

Question

I want users to accept my 'Terms & Conditions' statement on an application form before they are allowed to submit it by the e-mail button.
I want to place a required check box which produces an error message and prevents form submission until it is checked.
I have read hordes of the postings but none of the solutions seem to do quite what I want.
Any advice would be gratefully received

Answer 1

Hi,
I used the script you provided in the above post, and it worked perfectly, but my situation is a little different: I have two checkboxes, but I only want the message to appear if one of them isn't selected. If the other checkbox is selected, I need the fake submit button to go ahead and generate the email to send the form. I'm new to LiveCycle Designer, and I'm unsure of how to correctly use the "if" and "else" javascript. I need the message to appear when clicking the WebExYes checkbox, but I don't want it to appear when the user clicks the IntercallCheckBox.
Here's what my script looks like so far:
if 
(form1.subForm1.WebEx.WebExYes.rawValue != "1"){ xfa.host.messageBox("You must read the FHEG WebEx Usage Standards and select the Yes checkbox before submitting.");
else 
{ SubmitButton.execEvent("click");
if 
(form1.subForm1.AccountRequest.IntercallCheckBox.rawValue != "1")
else 
{SubmitButton.execEvent ("click");
Can someone tell me what I'm doing wrong or if I can even make this happen?
Thank you,
Hannah