SPLITTING THE RESULTS OF A FIELD?

hi, I have the following script which isn't working?

I would like the MINISPL!1, MINISPL2, MINISPL3 to bring up MINI SPLASH VLUe, and numbers 4 - 6 to bring up MINI SPLASH WHITE??

The blue will end up in one field, the white in another? hope this makes sense

for (var i=1; i<=6; i++) {

    if (this.getField("MINISPL"+"1","2","3").valueAsString=="text") {

        event.value = "MINI SPLASH BLUE";

        break;

    }

}