Time-stamped email with basic email validation

James "Jamie" Johnson
May 30, 2014

Just for fun, I am going to put up some code for time-stamped (or date-stamped) email (e-mail). If you click on the button below, you will see some prompts that are pre-populated. It is not a server-side mailer form, and would need a configured mail application on the client machine. The code also validates the email address.

Here is the code:

	
<script type="text/javascript">

 var today = new Date();

 var weekday = new Array("Sunday","Monday","Tuesday","Wednesday","Thursday","Friday","Saturday");

 var months = new Array("January","February","March","April","May","June","July","August","September","October","November","December");

 var meridian = 'a.m.';

 var hours = today.getHours();

 if(hours>12){ meridian = 'p.m.'; hours = hours - 12; } 

 var minutes = today.getMinutes();

 if(minutes<10) { minutes = "0" + minutes.toString(); }

</script>

<script type="text/javascript">

var year = today.getYear()+1900;

</script>

<!--[if IE]>

<script>

var year = today.getYear(); 

</script>

<![endif]-->

<script type="text/javascript">

function err(){

 alert('This information is required to send email.\n\nEmail will not be sent.');

 return false;

}

function emailerr() {

 alert('Invalid email address!\n\nTry again!');

 email();

}

function email(){

 var recipient = prompt('Recipient(s)','somebody@mail.com');

 if(recipient){

   if(recipient.indexOf('@')==-1) { 

    emailerr();

   } else {

    if(recipient.length<5) { emailerr(); }

    var checkemail = recipient.split('@');

    if(checkemail.length>2) { emailerr(); }

    if(checkemail.length<2) { emailerr(); }

    if(checkemail[0]<1) { emailerr(); }

    if(checkemail[1]<3) { emailerr(); }

 if(checkemail[1].indexOf('.')==-1) { emailerr(); }

    var checkemail2 = checkemail[1];

    checkemail2 = checkemail2.split('.');

    if(checkemail2[0] < 1) { emailerr(); }

    if(checkemail2[1] < 1) { emailerr(); }

   }

   var checkrecipient = recipient.split

  var date = weekday[today.getDay()] + ", " + months[today.getMonth()] + " " + today.getDate() + ", "+ year + ", at " + hours + ":" + minutes + " " + meridian; 

  var subject = prompt('Subject', date);

  if(subject) {

   var body = prompt('Message','Dear');

  if(body){

  location.href="mailto:"+recipient+"?subject="+subject+"&body="+body;

  } else { err(); }

  } else { err(); }

 } else { err(); }

}

</script>

<br />

<input onclick="email()" value="Send Email" type="button" />

Take notice. I could have used Date() instead of date to pre-populate the subject, but using my date variable allowed further customization of the output, while Date() yields what you get with seconds and timezone, etc.

tech @ Beacon Deacon

Time-stamped email with basic email validation