I have a simple form with some disabled text boxes. When the user clicks on the checkbox, the textboxs are enabled.

How can i add some animation on the textboxes so that when the checkbox is checked, the boxes fade in or slide in..

HTML:

```
<ul>
<li>
    <input id="addPreviousAddress" name="addPreviousAddress" type="checkbox" />
    <label class="blueText boldText" for="addPreviousAddress">Add Previous Address</label>
</li>
<li>
    <label>House Number</label>
    <input class="requiredField" id="prevHouseNumber" size="10" Maxlength="10" disabled="" type="text" />&nbsp
    <label>Flat Number</label>
    <input class="one-sixth requiredField" id="prevFlat" size="10" Maxlength="16" disabled="" type="text" />
</li>
<li>
    <label>House Name</label>
    <input id="prevHouseName" size="24" Maxlength="26" disabled="" type="text" />
</li>
<li>
    <label>Street</label>
    <input class="three-fifths requiredField" id="prevStreet" size="40" Maxlength="40" disabled="" type="text" />
</li>
<li>
    <label>Town</label>
    <input class="three-fifths" id="prevTown" size="40" Maxlength="20" disabled="" type="text" />
</li>
<li>
    <label>County</label>
    <input class="three-fifths" id="prevCounty" size="25" Maxlength="20" disabled="" type="text" />
</li>
<li>
    <label>Postcode</label>
    <input class="requiredField" id="prevPostcode" size="10" Maxlength="8" disabled="" type="text" />
</li>
<li>
    <label>Time at address</label>
    <input type="text" id="prevTimeYY" size="2" Maxlength="2" disabled="" type="text" />Years &nbsp&nbsp&nbsp
    <input type="text" id="prevTimeMM" size="2" Maxlength="2" disabled="" type="text" />Months</li>

```

JS:

```
$('#addPreviousAddress').change(function () {

$("#prevHouseNumber").prop("disabled", !$(this).is(':checked'));
$("#prevFlat").prop("disabled", !$(this).is(':checked'));
$("#prevHouseName").prop("disabled", !$(this).is(':checked'));
$("#prevStreet").prop("disabled", !$(this).is(':checked'));
$("#prevDistrict").prop("disabled", !$(this).is(':checked'));
$("#prevTown").prop("disabled", !$(this).is(':checked'));
$("#prevCounty").prop("disabled", !$(this).is(':checked'));
$("#prevPostcode").prop("disabled", !$(this).is(':checked'));
$("#prevTimeYY").prop("disabled", !$(this).is(':checked'));
$("#prevTimeMM").prop("disabled", !$(this).is(':checked'));

```

});

Here's my fiddle: <http://jsfiddle.net/oampz/mtsZ9/1/>

Any help would be appreciated.