<!--
// Set Variable That Counts The Number of Times The Form Has Been Submitted
var submitcount=0;
// Start hiding JavaScript code from old browsers.

function SubscriptionForm_Validator(theForm)
{
// If The Form Has Not Yet Been Submitted
if (submitcount == 0){  
// Force Entry of Value for the Name
  if (theForm.sSchoolName.value == "" || theForm.sSchoolName.value == " ")
  {
    alert("Please enter a value for the School Name field.");
    theForm.sSchoolName.focus();
    return (false);
  }
  
  if (theForm.sSchoolContact.value == "" || theForm.sSchoolContact.value == " ")
  {
    alert("Please enter a value for the Contact Person field.");
    theForm.sSchoolContact.focus();
    return (false);
  }

  if (theForm.sSchoolAddress.value == "" || theForm.sSchoolAddress.value == " ")
  {
    alert("Please enter a value for the School Address field.");
    theForm.sSchoolAddress.focus();
    return (false);
  }
  
  if (theForm.sSchoolCity.value == "" || theForm.sSchoolCity.value == " ")
  {
    alert("Please enter a value for the School City field.");
    theForm.sSchoolCity.focus();
    return (false);
  }
  
  if (theForm.sSchoolZip.value == "" || theForm.sSchoolZip.value == " ")
  {
    alert("Please enter a value for the School Zip field.");
    theForm.sSchoolZip.focus();
    return (false);
  }
  
    if (AcceptableCharacters(theForm.sSchoolZip.value, '0123456789-', 'School Zip') == false){
  	return (false)}
  
  if (theForm.sSchoolPhone.value != "" && theForm.sSchoolPhone.value != " ")
  {
    if (AcceptableCharacters(theForm.sSchoolPhone.value, '0123456789-(). ', 'School Phone') == false){
  	return (false)}
  }
  
  if (theForm.sSchoolEmail.value != "" && theForm.sSchoolEmail.value != " ")
  {
    if (emailCheck(theForm.sSchoolEmail.value) == false){
  	return (false)}
  }
 
// Increment the Count Variable
  submitcount++;
  return true;
}

// If The Form Has Already Been Submitted Once
else 
{
// Display Alert Message
	alert("The form has already been submitted.  This may take a little while, please be patient.");
	return false;
}
}

function emailCheck (emailStr) {

/* The following variable tells the rest of the function whether or not
to verify that the address ends in a two-letter country or well-known
TLD.  1 means check it, 0 means don't. */
var checkTLD=1;

/* The following is the list of known TLDs that an e-mail address must end with. */
var knownDomsPat=/^(com|net|org|edu|int|mil|gov|arpa|biz|aero|name|coop|info|pro|museum)$/;

/* The following pattern is used to check if the entered e-mail address
fits the user@domain format.  It also is used to separate the username
from the domain. */
var emailPat=/^(.+)@(.+)$/;

/* The following string represents the pattern for matching all special
characters.  We don't want to allow special characters in the address. 
These characters include ( ) < > @ , ; : \ " . [ ] */
var specialChars="\\(\\)><@,;:\\\\\\\"\\.\\[\\]";

/* The following string represents the range of characters allowed in a 
username or domainname.  It really states which chars aren't allowed.*/
var validChars="\[^\\s" + specialChars + "\]";

/* The following pattern applies if the "user" is a quoted string (in
which case, there are no rules about which characters are allowed
and which aren't; anything goes).  E.g. "jiminy cricket"@disney.com
is a legal e-mail address. */
var quotedUser="(\"[^\"]*\")";

/* The following pattern applies for domains that are IP addresses,
rather than symbolic names.  E.g. joe@[123.124.233.4] is a legal
e-mail address. NOTE: The square brackets are required. */
var ipDomainPat=/^\[(\d{1,3})\.(\d{1,3})\.(\d{1,3})\.(\d{1,3})\]$/;

/* The following string represents an atom (basically a series of non-special characters.) */
var atom=validChars + '+';

/* The following string represents one word in the typical username.
For example, in john.doe@somewhere.com, john and doe are words.
Basically, a word is either an atom or quoted string. */
var word="(" + atom + "|" + quotedUser + ")";

// The following pattern describes the structure of the user
var userPat=new RegExp("^" + word + "(\\." + word + ")*$");

/* The following pattern describes the structure of a normal symbolic
domain, as opposed to ipDomainPat, shown above. */
var domainPat=new RegExp("^" + atom + "(\\." + atom +")*$");

/* Finally, let's start trying to figure out if the supplied address is valid. */

/* Begin with the coarse pattern to simply break up user@domain into
different pieces that are easy to analyze. */
var matchArray=emailStr.match(emailPat);

if (matchArray==null) {

/* Too many/few @'s or something; basically, this address doesn't
even fit the general mould of a valid e-mail address. */
alert("Email address seems incorrect (check @ and .'s).");
return false;
}
var user=matchArray[1];
var domain=matchArray[2];

// Start by checking that only basic ASCII characters are in the strings (0-127).
for (i=0; i<user.length; i++) {
if (user.charCodeAt(i)>127) {
alert("Ths username contains invalid characters.");
return false;
   }
}
for (i=0; i<domain.length; i++) {
if (domain.charCodeAt(i)>127) {
alert("Ths domain name contains invalid characters.");
return false;
   }
}

// See if "user" is valid 
if (user.match(userPat)==null) {

// user is not valid
alert("The username doesn't seem to be valid.");
return false;
}

/* if the e-mail address is at an IP address (as opposed to a symbolic
host name) make sure the IP address is valid. */
var IPArray=domain.match(ipDomainPat);
if (IPArray!=null) {

// this is an IP address
for (var i=1;i<=4;i++) {
if (IPArray[i]>255) {
alert("Destination IP address is invalid!");
return false;
   }
}
return true;
}

// Domain is symbolic name.  Check if it's valid.
var atomPat=new RegExp("^" + atom + "$");
var domArr=domain.split(".");
var len=domArr.length;
for (i=0;i<len;i++) {
if (domArr[i].search(atomPat)==-1) {
alert("The domain name does not seem to be valid.");
return false;
   }
}

/* domain name seems valid, but now make sure that it ends in a
known top-level domain (like com, edu, gov) or a two-letter word,
representing country (uk, nl), and that there's a hostname preceding 
the domain or country. */
if (checkTLD && domArr[domArr.length-1].length!=2 && 
domArr[domArr.length-1].search(knownDomsPat)==-1) {
alert("The address must end in a well-known domain or two letter " + "country.");
return false;
}

// Make sure there's a host name preceding the domain.
if (len<2) {
alert("This address is missing a hostname.");
return false;
}

// If we've gotten this far, everything's valid!
return true;
}

function AcceptableCharacters (strValue, sAcceptableValues, sFieldLable)
{
	if (strValue.length > 0)
	{
		var checkOK = sAcceptableValues;
	    var checkStr = strValue;
	    var allValid = true;
	    for (i = 0;  i < checkStr.length;  i++)
	    {
			ch = checkStr.charAt(i);
	        for (j = 0;  j < checkOK.length;  j++)
				if (ch == checkOK.charAt(j))
	            break;
			if (j == checkOK.length)
	        {
	          allValid = false;
	          break;
	        }
		}
	
		if (!allValid)
		{
			alert("Please enter only valid characters for the " + sFieldLable + " field. Valid characters for this field are: '" + sAcceptableValues + "'.");
			
	        return (false);
		}
	}
}
//-->