Determine if a string is alphabetic 1

[mooster2]

In my HTML page, I have a Javascript portion that tells the user to enter his nickname because he has been accepted for a high score (it's a game ). I used the prompt command as follows:

tempname = prompt("You finished with a score of " + score + ".\nPlease enter your nickname for the Hall of Fame.", "Anonymous")

Now I only want the user to enter letters (no numbers, spaces or symbols)

Is there a function like: tempname.isAlpha() to see if the
users has entered only letters? If not, what can I do to verify that the string stored in "tempname" is composed of letters only?

is it something like if ( tempname > 'a' && tempname < 'z') ??

 

[jemminger]

include this on your page:

<script type="text/javascript">
String.prototype.isAlpha = function() {
  return /^[a-z]+$/i.test(this);
}
</script>

then you can call it using:
if( tempname.isAlpha() ) {
// do something
}

=========================================================
-jeff

http://www.jeffemminger.com

try { succeed(); } catch(E) { tryAgain(); } finally { rtfm(); }