<!--
// 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.

// last modified jk, march 5, 2007

// error flagging (optional)
function errorFlag (checkStr, element) {
	
	if (element.className) {
		var removeFlag = element.className.replace(/ error/i ,"");
		element.className -= removeFlag;
	}
	if (checkStr != "") {
		element.className += " error";
	}	
	return checkStr;
}

// email

function validateEmail (strng) {
var error="";
	if (strng == "") {
	   error = "* You didn't enter an email address.\n\n";
	}
    var emailFilter=/^.+@.+\..{2,3}$/;
    if (!(emailFilter.test(strng))) { 
       error = "* Please enter a valid email address.\n\n";
    }
    else {
	//test email for illegal characters
       var illegalChars= /[\(\)\<\>\,\;\:\\\"\[\]]/
         if (strng.match(illegalChars)) {
          error = "* The email address contains illegal characters.\n\n";
       }
    }
return error;    
}
function checkEmail (emailA, emailB) {
	var error="";
	error = validateEmail(emailA);
	if (emailB != emailA) {
		error = "* The email addresses you entered do not match. Please reconfirm.\n\n";
	}
	return error;
}

// phone number - strip out delimiters and check for 10 digits

function checkPhone (strng) {
var error = "";
if (strng == "") {
   error = "* You didn't enter a phone number.\n\n";
}

var stripped = strng.replace(/[\(\)\.\-\ ]/g, ''); //strip out acceptable non-numeric characters
    if (isNaN(parseInt(stripped))) {
       error = "* The phone number contains illegal characters.\n\n";
  
    }
    if (!(stripped.length == 10)) {
	error = "* The phone number is the wrong length. Make sure you included your area code.\n\n";
    } 
return error;
}

// required fielld
function isEmpty(strValue, strName) {
var error = "";
  if (strValue.length == 0) {
     error = "* " + strName.replace ("_"," ").toUpperCase() + " is a required field.\n\n"
  }
return error;	  
}

// required fielld
function checkRules(checkBox) {
var error = "";
  if (checkBox.checked == false) {
     error = "\nIMPORTANT! You must agree to the rules and privacy policy to register in this contest.\n"
  }
return error;	  
}

//-->