This function can be called from your client side form
validation function to test if a phone number field contains only
characters valid for a phone number.
function istelnum(s)
{
var valChar='0123456789 -()+'
for (var i=0; i < s.length; i++) {
var c=s.charAt(i);
if( valChar.indexOf(c) == -1 ) return false;
}
return true;
}
| Tested on Browser |
OK |
| IE 5 |
Y |
| IE 4 |
Y |
|
