make fields readonly based on input from another field

[Jawa]

If someone could help out here I would appreciate it.

I would like to use JS so that when you enter in a specific value into an input box it can instruct the 3 input boxes below it to be readonly or not.

Basically what I have is a JS that auto fills in city and state based on a zip code and keeps the fields readonly, but if the zip code does not match I want the fields to enable the user to type in the city and state.

Thank you!!!!

 

[mwolf00]

zipArr = new Array("12345","67890","12121","90909")
cityArr = new Array("City1","City2","City3","City4")
stateArr = new Array("OK","OH","IL","TX")

function checkZip(){
  boolFound = false
  inZip = document.myForm.zip.value
  for (x=0; x<zipArr.length; x++){
    if (zipArr[x] == inZip){
      document.myForm.city.value = cityArr[x]
      document.myForm.city.readOnly = true
      document.myForm.state.value = stateArr[x]
      document.myForm.state.readOnly = true
      boolFound = true
      break;
    }
  }
  if (!boolFound){
    document.myForm.city.readOnly = false
    document.myForm.state.readOnly = false
  }
}

Programming today is a race between software engineers striving to build better and bigger idiot-proof programs, and the Universe trying to produce bigger and better idiots. So far, the Universe is winning. - Rick Cook (No, I'm not Rick)

 

[Jawa]

This did the trick perfectly!!!!!! THANK YOU!!!