【mouse】
<!DOCTYPE html>
<html>
<head>
<script type='text/javascript'
src='http://code.jquery.com/jquery-1.6.js'></script>
<script type='text/javascript'>
$(window).load(function(){
function handler() {
console.log('hi');
bind();
}
function bind() {
var whatHandler = Math.random() > 0.5 ? 'dblclick' :'click';
$('div').unbind('.test').bind(whatHandler + '.test', handler);
}
$(function() {
bind();
});
});
</script>
</head>
<body>
<div>click me</div>
</body>
</html>
