form label.error {
  background:url("images/unchecked.gif") no-repeat ;
  padding-left: 16px;
  padding-bottom: 6px;
  padding-top:4px;
  color:#F00;
}

form label.checked {
  background:url("images/checked.gif") no-repeat ;
}
form label{
	margin-left:5px;
}