td.form_field_name { 
                     padding-left: 30px;
                     background-repeat: no-repeat;
                     background-position: 0px 11px;
                     }

td.form_incorrect { 
                    padding-left: 30px;
                    background-image: url("../images/incorrect_field.gif");
                    background-repeat: no-repeat;
                    background-position: 5px 10px;
                    }