Sorry if this question's already been answered, but I couldn't find it through searching.

I don't have a registration page in my survey because I don't need users to register, but I still want them to confirm that they've read the participant information sheet. I have therefore been trying to put yes/no checkboxes on the welcome page before participants are able to enter the survey.

I used the code from the workaround for the registration page, which obviously inserts the checkboxes with no problem ( manual.limesurvey.org/Workarounds:_Quest...stering_for_a_survey ).

I also found in the forums someone has previously answered how to hide the 'Next' button

<script type="text/javascript" charset="utf-8">

$(document).ready(function() {

$('#movenextbtn').hide();

});

</script>

which, again, obviously does hide the 'Next' button, the problem is that I don't know how to make the first thing affect the second thing--how do I get the 'Next' button to be hidden only until 'Yes' is checked?

For a YES/NO question,
try the following code:
Notes:
1) Remove or edit the prompted alert if unnecesary...
2) If your html element is not a "button" but an "input", look this previous post

.