When I use

```
$('body').html(data1)

```

or 

```
$('html').html(data1)

```

in AJAX, then any HTML tag or jQuery function does not work on the loaded page.

```
$.ajax({
    type:"GET",
    dataType: 'html',
    url: 'hell.php',
    success : function(data1) {
        alert(data1);// will alert "ok"
        $('body').html(data1);
    },
});

```