function verifyFields(field, caption) {												
	if (field.value =='') {
		alert('Please enter your '+caption+'!');
		return false;
	}		
}

function checkmail(e){
  var re = /^([\w-]+\.)*?[\w-]+@[\w-]+\.([\w-]+\.)*?[\w]+$/

  if (e.value.match(re)) {
	return true;
  } else {
	alert("Please enter a valid email address.");
	return false;
  }
}