// JavaScript Document
function validate(form) {
if (form.name.value == "") {
  alert('Please type a valid name.');
  form.name.focus();
  return false;
} else if (form.email.value == "" ||
    	form.email.value.indexOf('@')==-1 ||
    	form.email.value.indexOf('.')==-1 ||
    	form.email.value.length < 10) {
  alert('Please type a valid e-mail address.');
  form.email.focus();
  return false;
} else if (form.subject.value == "") {
  alert('Please type a valid subject.');
  form.subject.focus();
  return false;
} else if (form.message.value=="") {
  alert('Please type a valid message.');
  form.message.focus();
  return false;
}
return true;
}