function SetCheckboxStatus(objCheck)
    {
        var bIsEnabled = objCheck.value != '';
        
        if (document.getElementById('SendCopy')) { document.getElementById('SendCopy').disabled = bIsEnabled ? '' : 'disabled'; }
        if (document.getElementById('AllowContact')) { document.getElementById('AllowContact').disabled = bIsEnabled ? '' : 'disabled'; }
    }
    
function SubmitFeedback()
    {
        var sErrorMessage = '';
        
        if (document.frmMain.txtComment.value != '')
            {
                FormSubmit('SubmitFeedback');
            }
        else
            {
                alert('You must enter something in the comment field.'); 
            }
    }