MediaWiki:Gadget-FormCheck.js

function checkForm() {
    if( $('select[name="retreattype[]"]').val() === 'Three-year retreat') {
        if( $('.MustField, .ThreeMustField').filter(function() { return this.value === ''; }).length === 0 ) {
            console.log("All filled, setting status to 'Complete'.");
            $('input[name="status"]').val("Complete");
        } else {
            console.log("Fields missing..." + $('select[name="retreattype[]"]').val());
            $('input[name="status"]').val("Saved");
        }
    } else if( $('select[name="retreattype[]"]').val() === 'Solitary hermitage') {
        if( $('.MustField, .SolMustField').filter(function() { return this.value === ''; }).length === 0 ) {
            console.log("All filled, setting status to 'Complete'.");
            $('input[name="status"]').val("Complete");
        } else {
            console.log("Fields missing..." + $('select[name="retreattype[]"]').val());
            $('input[name="status"]').val("Saved");
        }
    } else {
        console.log("Retreat type not set." + $('select[name="retreattype[]"]').val());
    }
}
if( $('input[name="status"]').val() === 'Complete') {
    $('#TfacsSubmission input, #TfacsSubmission select, #TfacsSubmission textarea').not('#TfacsSubmitApplication').prop('disabled', true);
    $('.mw-collapsed').removeClass('mw-collapsed');
    $('.section-nav-toggles').hide();
} else if( $('input[name="status"]').val() === 'Submitted') {
    $('#TfacsSubmission input, #TfacsSubmission select, #TfacsSubmission textarea').prop('disabled', true);
    $('.mw-collapsed').removeClass('mw-collapsed');
    $('.section-nav-toggles, #TfacsSubmitApplication').hide();
} else {
    jQuery(document).ready( checkForm() );
    $('#TfacsSubmission input, #TfacsSubmission select, #TfacsSubmission textarea').on( "keyup", checkForm() );
}