// JavaScript Document

// Copyright © 2001 by Apple Computer, Inc., All Rights Reserved.
//
// You may incorporate this Apple sample code into your own code
// without restriction. This Apple sample code has been provided "AS IS"
// and the responsibility for its operation is yours. You may redistribute
// this code, but you are not permitted to redistribute it as
// "Apple sample code" after having made changes.

// valfield - element to be validated
// infofield - if of element to receive error mssg.

// email

function checkEmail (strng) {
var error="";
var emailFilter=/^.+@.+\..{2,3}$/;
var illegalChars= /[\(\)\<\>\,\;\:\\\"\[\]]/

if (strng == "") {
   error = "You didn't enter an email address.\n";

}

    else if (!(emailFilter.test(strng))) { 
       	error = "Please enter a valid email address.\n";
}
    else {
//test email for illegal characters
         if (strng.match(illegalChars)) {
          error = "The email address contains illegal characters.\n";
       }
    }
return error;    
}


// phone number - strip out delimiters and check for 10 digits

function checkPhone (strng) {
var stripped = strng.replace(/[\(\)\.\-]/g, ''); //strip out acceptable non-numeric characters

var error = "";

if (strng != "") {
    if (isNaN(parseInt(stripped))) {
       error = "The phone number contains illegal characters.";
  
    }
}
return error;
}



// non-empty Company field

function isEmpty(strng) {
var error = "";
  if (strng.length == 0) {
     error = "The Company is a required field.\n"
  }
return error;	  
}

function checkFirstName(strng) {
var error = "";

if (strng.length == 0) {
	  error = "The First Name is a required field.\n"
  }

	else if (strng.search(/[0-9\(\)\.\-\[\]]/) >= 0) {
		error = "The First Name contains illegal characters.";
	}
return error;
}

function checkLastName(strng) {
var error = "";

if (strng.length == 0) {
	  error = "The Last Name is a required field.\n"
  }

	else if (strng.search(/[0-9\(\)\.\-\[\]]/) >= 0) {
		error = "The Last Name contains illegal characters.";
	}
return error;
}