【anchor】
<!DOCTYPE html>
<html>
<head>
<script type='text/javascript'
src='http://code.jquery.com/jquery-1.9.1.js'></script>
<style type='text/css'>
a {
color: blue;
}
a:active, a.active {
color: red;
}
</style>
<script type='text/javascript'>
$(window).load(function(){
$(document).ready(function () {
$('button').click(function () { $('a').toggleClass('active') });
});
});
</script>
</head>
<body>
<a href="#">Link</a>
<button>Activate/Deactivate</button>
</body>
</html>
