// form validation function //
function resendvalidate(form) {
   
  var email = form.email.value;
  var email = email.replace(/^\s+|\s+$/g, '') ;
  var emailRegex = /^[\w-\.]+@([\w-]+\.)+[\w-]{2,4}$/;

  if(email == "") {
  	form.email.focus();
    alert('You must enter your email.');
    return false;
  }
  if(!email.match(emailRegex)) {
    form.email.focus();
    alert('You have entered an invalid email.');
    return false;
  }
 
  return true;
}