function fCompleteForm() {

    // Error variable
        var sErr = "";

    // Check mandatory fields
        if (document.frmBooking.sName.value=="") {
            sErr += "\n - Name";
        }
        if (document.frmBooking.sOrganisation.value=="") {
            sErr += "\n - Organisation";
        }
        if (document.frmBooking.sTel.value=="") {
            sErr += "\n - Tel";
        }
        if (document.frmBooking.sEmail.value=="") {
            sErr += "\n - Email";
        }

        if (document.frmBooking.sDate.value=="") {
            sErr += "\n - Date";
        }

        var dropdown = document.getElementById('sTimeslot');
        var selectedOption = dropdown.options[dropdown.selectedIndex].value; 
        if (selectedOption=="") {
            sErr += "\n - Time slot";
        }

        var dropdown = document.getElementById('sGroupSize');
        var selectedOption = dropdown.options[dropdown.selectedIndex].value; 
        if (selectedOption=="") {
            sErr += "\n - Group size";
        }


    // Checkboxes
        if (document.getElementById('bTerms1').checked==false) {
            sErr += "\n - Please tick the checkbox 'I have read the information on the corporate experience days page'";
        }
        if (document.getElementById('bTerms2').checked==false) {
            sErr += "\n - Please tick the checkbox 'I agree to the privacy policy and terms & conditions'";
        }


    // Google recaptcha
        var response = grecaptcha.getResponse( $('#recaptcha1').attr('data-widget-id') );
        if (response.length > 0) {
            // all good (details will be checked on exec page)
        } else {
            sErr += "\n - Please tick the \"I'm not a robot\" checkbox";
        }


    // Display errors or submit form?
        if (sErr!="") {
            // Display error
                alert("Please check the following has been filled in:-\n" + sErr);
                grecaptcha.reset( $('#recaptcha1').attr('data-widget-id') );
        } else {
            // Submit form
                document.frmBooking.action='pages/visit/corporate-fun-days_bookingform_exec.php';
                document.frmBooking.submit();
        }

}