【text_input】
<!DOCTYPE html>
<html>
<head>
<script type='text/javascript'
src='http://code.jquery.com/jquery-1.10.1.js'></script>
<script type='text/javascript'>
$(window).load(function(){
$("#myinput").click(function(e){
e.preventDefault();
this.select();
});
});
</script>
</head>
<body>
<div>
<input id="myinput" type="text" />
</div>
</body>
</html>
