function checkData(d) {
  var msg = "";
  // Check name
  var nmcheck = document.formmail.realname.value;
  nmcheck = nmcheck.match(/^[a-zA-Z\-]+\s+[a-zA-Z\-\.\,\s]+$/);
  if (!nmcheck) msg+= 'Please enter your first and last name.\n';  
  
 	// Check for valid Email Address
  var emcheck = document.formmail.email.value;
  emcheck = emcheck.match(/^([\w\.\-])+\@(([\w\-])+\.)+([\w]{2,4})+$/);
  if (!emcheck) msg+= 'Please enter your email address.\n';
	
  // Showing an alert and stopping the form processing
 
  if (msg !== "") {
     alert(msg);
     return false;
  }
}