Пример:
Переключать все параграфы.
"HTML"
<button>Toggle</button>Hello
<p style="display: none">Good Bye</p>
"Живой пример jQuery"
<!DOCTYPE HTML PUBLIC "-//W3C//DTD HTML 4.01 Transitional//EN"
"http://www.w3.org/TR/html4/loose.dtd">
<html>
<head>
<link href="http://slyweb.ru/css/jqueryiframe.css"
rel="stylesheet" type="text/css"/>
<script src="https://ajax.googleapis.com/ajax/libs/jquery/1.5.0/jquery.min.js"></script>
<script>
$(document).ready(function(){
$("button").click(function () {
$("p").toggle();
});
});
</script>
</head>
<body class="iframe">
<button>Toggle</button>
Hello
<p style="display: none">Good Bye</p>
</body>
</html>