function password_checker(password_id, checker_id)
{
	var ele_pas = document.getElementById(password_id);
	var ele_che = document.getElementById(checker_id);

	if (ele_pas && ele_che && ele_pas.value != ele_che.value)
	{
		alert('Passwords do not match.\r\nPlease try again.');
		ele_che.value = '';
		ele_pas.value = '';
		ele_pas.focus();
	}
}