var clickedButton = false;
var holdtime = 0;

// Functions to retrieve requestor date/time
function tS(){ x=new Date(); x.setTime(x.getTime()); return x; } 
function lZ(x){ return (x>9)?x:'0'+x; } 
function tH(x){ if(x==0){ x=12; } return (x>12)?x-=12:x; } 
function aP(x){ return (x>11)?'pm':'am'; } 
function y4(x){ return (x<500)?x+1900:x; } 
var dN=new Array('Sunday','Monday','Tuesday','Wednesday','Thursday','Friday','Saturday'),mN=new Array('January','February','March','April','May','June','July','August','September','October','November','December'),oT="dN[tS().getDay()]+','+' '+mN[tS().getMonth()]+' '+tS().getDate()+','+' '+y4(tS().getYear())+' '+'-'+' '+tH(tS().getHours())+':'+lZ(tS().getMinutes())+':'+lZ(tS().getSeconds())+' '+aP(tS().getHours())";

function Valid(theForm)
{
// check for physical click/submit
 if (clickedButton == false) {
 return false; }
 holdtime = eval(oT);

// dont submit if no time retrieved

 if (holdtime == 0)
 { return false; }
 theForm.thetime.value = holdtime;
 
  if (theForm.emailadr.value == "")
 {
  alert("Please enter an email address.");
  theForm.emailadr.focus();
  return false;
 }
 
 if (theForm.reqname.value == "")
  {
 alert("Please enter your Name.");
 theForm.reqname.focus();
 return (false);
}
 
  if (theForm.comments.value == "")
{
alert("Please enter Ad Text, Description of Ad or Ad Question");
theForm.comments.focus();
return false;
 }

// set action for form--jscript must be on for form to submit (3/2006)
document.sndquest.action = "http://www.biblestudy.org/cgi-bin/cgiemail/protect/ademail.txt";

 if (theForm.emailadr.value != "")
{

var emailaddr = theForm.emailadr.value;

/* 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=emailaddr.match(emailPat);

if (matchArray==null) {

/* Too many/few @'s or something; basically, this address doesn't
even fit the general mold of a valid e-mail address. */

alert("Please enter valid Email address (username@domain.xxx)." );
theForm.emailadr.focus();
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("The Email Address USERNAME contains invalid characters (USERNAME@domain.xxx).");
theForm.emailadr.focus();
return false;
 }
}

for (i=0; i<domain.length; i++) {
if (domain.charCodeAt(i)>127) {
alert("The Email Address DOMAIN name contains invalid characters (username@DOMAIN.xxx).");
theForm.emailadr.focus();
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 (USERNAME@domain.xxx). Please rekey.");
theForm.emailadr.focus();
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("The Email Address DOMAIN IP address is invalid! (username@DOMAINIP.xxx)");
 theForm.emailadr.focus();
 return false;
 }
 } // for loop
 
 if (clickedButton)
 {clickedButton = false;
 theForm.submit();
 return false; }
	
//return true;
 } // IpArray null..
// 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 Email Address DOMAIN is not valid (username@DOMAIN.xxx).");
theForm.emailadr.focus();
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 Email address must end in well-known domain or two letter " + "country.");
theForm.emailadr.focus();
return false;
}

// Make sure there's a host name preceding the domain.

if (len<2) {
alert("This Email address is missing a hostname!");
theForm.emailadr.focus();
return false;
 }
}

 if (clickedButton)
 {clickedButton = false;
 theForm.submit(); }

}   // end of function