<!DOCTYPE html PUBLIC "-//W3C//DTD XHTML 1.0 Strict//EN"
"http://www.w3.org/TR/xhtml1/DTD/xhtml1-strict.dtd">
<html xmlns="http://www.w3.org/1999/xhtml">
<head>
<meta http-equiv="Content-type" content="text/html; charset=utf-8" />
<title>Click, мать его</title>
<style>
.to_click{
background:#CCC; border:1px solid #666; float:left; margin-left:30px; padding:15px 15px; text-align:center; cursor:pointer;
}
</style>
<script src="jquery-1.4.4.min.js" type="text/javascript"></script>
<script type="text/javascript">
$(".to_click").click(
function(){
$("body").html("it_works").css("background-color", "#ff0000");
}
);
</script>
</head>
<body>
<div class="to_click">to_click</div>
</body>
</html>