note 55684 deleted from function.ereg by tularis

Note Submitter: fox ---- concerning the 'valid postal code' bit from 25 july - regular expressions are good for turning the longer zip checking code given below into much shorter snippets, such as the following (which accomplishes the same zip code check): $error_code=(ereg("^[0-9]{5}(-[0-9]{4})$",$zip))? NULL:1; the expression requires the first five digits and allows an additional four; the hyphen is required if the optional four are present