Checkbox on Submit if statement

[wgalliance]

I have a submission form with a drop down menu listing National or Local. I would like a way that if the user selects "National" in the dropdown menu, upon submission of the form the StateCampaign checkbox field is set to "yes".

Thanks.

[MayMusic]

You can have this code in the Footer of the page:

 

<script>
document.getElementById('Submit').onmouseover = function(){
if (document.getElementById("DROP DOWN FIELD ID").value == "National")
{
document.getElementById('CHECK BOX ID').checked = true;} else {
document.getElementById('CHECK BOX ID').checked = false;
}
}
</script>

Replace "DROP DOWN FIELD ID" and "CHECK BOX ID" with appropriate IDs

[wgalliance]

Thanks this code worked perfectly.

I would like the Drop Down field to be a cascading dropdown, when this is done, the script no longer checks the box. I assume this is due to the cascading drop down. How would I edit the code in this scenario? 

[MayMusic]

Try to change

document.getElementById("DROP DOWN FIELD ID").value

To:

document.getElementsByName("DROP DOWN FIELD ID")[0].value