I have spent so much time on it that I've got myself confused!  I am trying to make a form with and address. (city, state, and zip) where it will validate it.  The city must be greater than 2 characters long, with no numbers, the state must be 2 characters long with no numbers.  The zip, either 5 or 10 characters long.  If any of these are wrong, I need an alert to come up.  This I can do fine.  

Here's the problem:  If zip is correct, the city and state can be blank.  If the city and state are not blank, they need to be varified by the above explaination.

How can I code this?  I am a fairly new JavaScript user and my brain is fried!

Thanks!

Dear angela,

I tested this is IE 4 and 5 and nutscrap 4.06.

Hope this helps
-pete

function form1_onsubmit() {

var sCity = document.form1.city.value;
var sState = document.form1.state.value;
var sZip = document.form1.zip.value;

// City, State, Zip valid flags
var validFlags = new Array(false,false,false);

// matches 5 digits
var re = new RegExp("^([0-9]{5})$");

// see if zip matches 're'
validFlags[2] = ( 0 == sZip.search(re))


// if zip is not valid check '##### ####'
if ( !validFlags[2]){
// matches 5 digits space 4 digits
re = new RegExp("^([0-9]{5} [0-9]{4})$");
validFlags[2] = ( 0 == sZip.search(re));
}

if ( validFlags[2]){
        // city and state can be empty
if ( 0 == sCity.length)
validFlags[0] = true;
if ( 0 == sState.length)
validFlags[1] = true;
}

if ( !validFlags[0]){ // City

re = new RegExp("^([a-zA-Z]{3,})$");
validFlags[0] = ( 0 == sCity.search(re));
}

if ( !validFlags[1] ){ // State

re = new RegExp("^([a-zA-Z]{2})$");
validFlags[1] = (0 == sState.search(re));
}

if (!validFlags[0] ¦¦ !validFlags[1] ¦¦ !validFlags[2])
alert("not valid");

return validFlags[0] &&
validFlags[1] &&
validFlags[2];
}