A browser displays a web page having a plurality of first input fields, on a display device at a client computer. The web page also has a second input field for use as a status indicator, positioned adjacent one of the first input fields. When a user enters data into one or more of the first input fields other than the one adjacent the second input field, a script is run to interpret the input data. In response to the interpretation, the second input field is altered to indicate a status for the adjacent first input field, without accessing a server.