function unclick_stars(a_star) {
	$ul = a_star.parentNode.parentNode;
	$a_array = $ul.getElementsByTagName('a');
	for (i = 0; i < $a_array.length; i++) {
  		$a_array[i].style.background = '';
  		$a_array[i].style.backgroundPosition = '';
  	}
}

function star_click(a_star) {
  	unclick_stars(a_star);
  	a_star.style.background = 'url(/gfx/star.gif) left -1000px repeat-x';
  	a_star.style.backgroundPosition = 'left bottom';
  	$name = a_star.parentNode.parentNode.id;
  	$value = a_star.innerHTML;
  	$hidden = document.getElementById('hidden_stars');
  	$hidden.value += '|'+$name+':'+$value;
  	return false;
}

function markStars($div, $value) {
	$ul = document.getElementById($div);
	$a_array = $ul.getElementsByTagName('a');
	for (i = 0; i < $a_array.length; i++) {
		if ($a_array[i].innerHTML==$value) {
			star_click($a_array[i]);
		}
	}
}