function Select(option){
  document.getElementById('left'+option).src= "/babypeer/images/tag_ok_left.gif";
  document.getElementById('right'+option).src= "/babypeer/images/tag_ok_right.gif";
}
function UnSelect(option){
  document.getElementById('left'+option).src= "/babypeer/images/tag_none_left.gif";
  document.getElementById('right'+option).src= "/babypeer/images/tag_none_right.gif";
}