document.onsubmit = function (e){

  e = e || window.event;
  var elem = e.target || e.srcElement;

  if(!elem || elem.nodeName != 'FORM' || elem.getAttribute('ajaxify')){
   // if (validate(elem)){
      send_email();
   // }
    return false;
  } 
};


function send_email(){
 var async_request = new XMLHttpRequest();
  async_request.open("POST","mail/contact_mail.php");
  async_request.setRequestHeader("Content-Type", "application/x-www-form-urlencoded");
  var email_to_send = {};
  email_to_send.contactors_name = document.getElementById('contactors-name').value;
  email_to_send.contactors_email = document.getElementById('contactors-email').value;
  email_to_send.contactors_message = document.getElementById('contactors-message').value;
  async_request.send('data=' + JSON.stringify(email_to_send));
};