not(expr) removes elements matching the specified expression
<html>
<head>
<script type="text/javascript" src="js/jquery-1.3.2.js"></script>
<script type="text/javascript">
$(document).ready(function(){
$("div").not(".green").css("color", "red");
});
</script>
</head>
<body>
<body>
<div id="results">asdf</div>
</body>
</html>
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