I need to implement jQuery date picker in my project. This is my script:

```
<script type="text/javascript">
    $(document).ready(function () {
        $("#datepicker").datepicker();
    });
</script>

```

I added these links in my HTML:

```
<link rel="stylesheet" href="http://code.jquery.com/ui/1.10.2/themes/smoothness/jquery-ui.css" />
<script src="http://code.jquery.com/jquery-1.9.1.js"></script>
<script src="http://code.jquery.com/ui/1.10.2/jquery-ui.js"></script>

<label style="padding-left: 5px;">Date</label><input type="text" id="datepicker" />

```

But I can't get the dropdown window to show with that code. How can I solve this problem?
When I looked into the view source of the page, there are some extra jquery scripts for the function like:

```
    <link href="../../Content/Site.css" rel="stylesheet" type="text/css" />
    <link href="../../Content/themes/base/jquery-ui-1.9.2.css" rel="stylesheet" type="text/css" />
    <link href="/Scripts/jtable/themes/standard/jtable_empty.css" rel="stylesheet" type="text/css" />
    <link href="../../Content/application.css" rel="stylesheet" type="text/css" />
    <script src="../../Scripts/jquery-1.8.3.js" type="text/javascript"></script>
    <script src="/Scripts/jquery.unobtrusive-ajax.js" type="text/javascript"></script>
    <script src="../../Scripts/jquery-ui-1.9.2.js" type="text/javascript"></script>
    <script src="/Scripts/jtable/jquery.jtable.js" type="text/javascript"></script>
    <script src="../../Scripts/knockout-2.1.0.js" type="text/javascript"></script>
    <link href="/Scripts/jtable/themes/standard/jtable_empty.css" rel="stylesheet" type="text/css" />
    <link href="/Content/themes/base/jquery-ui-1.9.2.css" rel="stylesheet" type="text/css" />
    <script src="/Scripts/jtable/jquery.jtable.js" type="text/javascript"></script>
    <script src="/Scripts/jquery.cookie.js" type="text/javascript"></script>
    <script src="/Scripts/modernizr-1.7.min.js" type="text/javascript"></script>
    <script src="/Scripts/knockout-2.2.0.js" type="text/javascript"></script>
    <script src="/Scripts/advancedSearch/AdvancedSearch.js" type="text/javascript"></script>
    <script src="/Scripts/advancedSearch/jquery.validationEngine.js" type="text/javascript"></script>
    <script src="/Scripts/advancedSearch/jquery.validationEngine-en.js" type="text/javascript"></script>
    <link href="/Scripts/advancedSearch/validationEngine.jquery.css" rel="stylesheet" type="text/css" />

```