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Edit mask or picture validation

Posted on 1998-10-07
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Last Modified: 2008-03-04
I have two fields represent phone number.
The first has 3 digits for area code and the second has
8, 7 for the actual phone number and 1 for the dash.

I would like to put an edit mask on the 2nd field so that they enter the phone number like this 819 773-0738
Both fields are input text and I would like to perform this validation using the onChange event.
Does anyone have a good example of this?
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Question by:adbdev2
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4 Comments
 

Author Comment

by:adbdev2
ID: 1271876
Edited text of question
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Expert Comment

by:Michel Plungjan
ID: 1271877
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Author Comment

by:adbdev2
ID: 1271878
that is a different scenario and too much for what I'm trying to do.  Already saw that page and would like a simpler example.  Thanks though.
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Accepted Solution

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Michel Plungjan earned 20 total points
ID: 1271879
The idea was to get rid of what you didn't need...
But ok It is complex.

Try this - not eleant, but it is very simple:
<SCRIPT LANGUAGE="JavaScript">
function checkPhone(phoneNumber) {
   var Error = false;
   phoneNumber =+ ''; // force string
   if (!phoneNumber || phoneNumber.length != 12) Error = true;
   else {
      for (i=0;i<phoneNumber.length;i++)
          if (i=3 && phoneNumber.charAt(i) != ' ') {
             Error = true;
             break;
          }
          else if (i=7 && phoneNumber.charAt(i) != '-') {
             Error = true;
             break;
          }
          else if (!isDigit(phoneNumber.charAt(i)) {
             Error = true;
             break;
          }
      }
   }
   if (Error) {
      alert('The phonenumber ' + phoneNumber + ' needs to be in the format nnn nnn-nnnn);
      return false;
}
function isDigit(c) { return ((c >= "0") && (c <= "9")) }
</SCRIPT>

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