function fCompleteForm() {

    // Error variable
        var sErr = "";

    // Check mandatory fields
        if (document.frmDonateItems.sFN.value=="") {
            sErr += "\n - First name";
        }
        if (document.frmDonateItems.sLN.value=="") {
            sErr += "\n - Last name";
        }
        if (document.frmDonateItems.sTel.value=="") {
            sErr += "\n - Tel";
        }
        if (document.frmDonateItems.sEmail.value=="") {
            sErr += "\n - Email";
        }
        if (document.frmDonateItems.sAddr1.value=="") {
            sErr += "\n - Address line 1";
        }
        if (document.frmDonateItems.sTown.value=="") {
            sErr += "\n - Town";
        }
        if (document.frmDonateItems.sPostcode.value=="") {
            sErr += "\n - Postcode";
        }


    // Checkboxes
        if (document.getElementById('bTerms1').checked==false) {
            sErr += "\n - Please tick the checkbox 'I understand you can't receive items from after the year 2000'";
        }
        if (document.getElementById('bTerms2').checked==false) {
            sErr += "\n - Please tick the checkbox 'I understand you do not accept loans of items, only donations'";
        }
        if (document.getElementById('bTerms3').checked==false) {
            sErr += "\n - Please tick the checkbox 'I agree to the donations 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.frmDonateItems.action='pages/help/donate-exhibits_exec.php';
                document.frmDonateItems.submit();
        }

}