// JavaScript Document

// Email Validation Javascript
// copyright 23rd March 2003, by Stephen Chapman, Felgall Pty Ltd

// You have permission to copy and use this javascript provided that
// the content of the script is not changed in any way.

function validateEmail(addr,man,db) {
if (addr == '' && man) {
   if (db) alert('email address is mandatory');
   return false;
}
var invalidChars = '\/\'\\ ";:?!()[]\{\}^|';
for (i=0; i<invalidChars.length; i++) {
   if (addr.indexOf(invalidChars.charAt(i),0) > -1) {
      if (db) alert('email address contains invalid characters');
      return false;
   }
}
for (i=0; i<addr.length; i++) {
   if (addr.charCodeAt(i)>127) {
      if (db) alert("email address contains non ascii characters.");
      return false;
   }
}

var atPos = addr.indexOf('@',0);
if (atPos == -1) {
   if (db) alert('email address must contain an @');
   return false;
}
if (atPos == 0) {
   if (db) alert('email address must not start with @');
   return false;
}
if (addr.indexOf('@', atPos + 1) > - 1) {
   if (db) alert('email address must contain only one @');
   return false;
}
if (addr.indexOf('.', atPos) == -1) {
   if (db) alert('email address must contain a period in the domain name');
   return false;
}
if (addr.indexOf('@.',0) != -1) {
   if (db) alert('period must not immediately follow @ in email address');
   return false;
}
if (addr.indexOf('.@',0) != -1){
   if (db) alert('period must not immediately precede @ in email address');
   return false;
}
if (addr.indexOf('..',0) != -1) {
   if (db) alert('two periods must not be adjacent in email address');
   return false;
}
var suffix = addr.substring(addr.lastIndexOf('.')+1);
if (suffix.length != 2 && suffix != 'com' && suffix != 'net' && suffix != 'org' && suffix != 'edu' && suffix != 'int' && suffix != 'mil' && suffix != 'gov' & suffix != 'arpa' && suffix != 'biz' && suffix != 'aero' && suffix != 'name' && suffix != 'coop' && suffix != 'info' && suffix != 'pro' && suffix != 'museum') {
   if (db) alert('invalid primary domain in email address');
   return false;
}
return true;
}


function validatePhone(phone_number) {
	var invalidChars = '\/\'\\ ";:?!()[]\{\}^|';
	invalidChars = invalidChars + 'abcdefghijklmnopqrstuvwxyzABCDEFGHIJKLMNOPQRSTUVWXYZ';
	for (i=0; i<invalidChars.length; i++) {
	   if (phone_number.indexOf(invalidChars.charAt(i),0) > -1) {
	      //alert('phone number contains invalid characters');
	      return false;
	   }
	}
}

function check_data(my_form){
	var no_problems=true;
	var AlertText="There are problems with your submission. ";
	
	//check that required fields are filled
	if ( (my_form.name.value =="") || (my_form.phone.value =="") || (my_form.email.value =="") ) {
	  AlertText=AlertText+'Some required fields are missing. Please be sure to enter your name, phone number (with area code) and email address. ';	  
	  no_problems=false;
	}
	
	//check that phone number only contains numbers and '-' sign
/*
	if (!validatePhone(my_form.phone.value)) {
		AlertText=AlertText + "Please input a valid phone number. ";
		no_problems=false;
	 }
*/	
	
	//check if email_1 is a proper email address 
	
	if (!validateEmail(my_form.email.value,1,0)) {
		AlertText=AlertText + "Please input a valid email address. ";
		no_problems=false;
	 }
	
	//check if email_1 and email_2 don't match

//	if ((my_form.email_1.value)!=(my_form.email_2.value)) {
//		AlertText=AlertText + "Please make sure that email addresses match. ";
//		no_problems=false;		
//	}
	
	//if problems detected then display alert
	if (no_problems==false) {
	  alert(AlertText);	
	}
	
	return no_problems;
}