function toggleFeild( fieldList )
            { 
                // Split the comma seperated list into an array
                var fieldArray = fieldList.split( "," );
                for ( var field = 0; field < fieldArray.length; field++ )
                {
                    // Get the element ref from the ID
                    var element = document.getElementById( fieldArray[ field ] );

                    // Make sure the element exists, 
                    // if not fail silently, should really do something more funky but it just a demo
                    if ( element )
                    {
                            // Togle the element state and class
                            if ( element.disabled )
                            {
                                element.className = 'activeField';
                                element.disabled = false;
                            }
                            else
                            {
                                element.className = 'disabledField';
                                element.disabled = true;
                            }
                    }
                }    
            }