date picker is not a function

Question

hai all i wrote these lines for datepicker ..it says date ppicker is not a fuhnction i m sharing my code here.i googled but i cant find anything new .can anyone help me out 

TIA

 

@model CalenderEvents.Models.Tb_Calender

@{

ViewBag.Title = "Calender";

}

<a href="~/Views/Home/Calender.cshtml">~/Views/Home/Calender.cshtml</a>

<script src="~/Scripts/jquery-1.7.1.js"></script>

<script src="~/Scripts/jquery-ui-1.8.20.js"></script>

@section scripts{

@Scripts.Render("~/Content/cssjqryUi")

@Scripts.Render("~/bundles/jquery")

<script type="text/ecmascript">

$(document).ready(function () {

$("#datepicker").datepicker();

});

</script>

}

<h2>Calender</h2>

@using (Html.BeginForm()) {

@Html.ValidationSummary(true)

<fieldset>

<legend>Tb_Calender</legend>

<div class="editor-label">

@Html.LabelFor(model => model.Date)

</div>

<div class="editor-field">

@Html.EditorFor(model => model.Date, new { @id="datepicker"})

@Html.ValidationMessageFor(model => model.Date)

</div>

<div class="editor-label">

@Html.LabelFor(model => model.Events)

</div>

<div class="editor-field">

@Html.EditorFor(model => model.Events)

@Html.ValidationMessageFor(model => model.Events)

</div>

<div class="editor-label">

@Html.LabelFor(model => model.Remarks)

</div>

<div class="editor-field">

@Html.EditorFor(model => model.Remarks)

@Html.ValidationMessageFor(model => model.Remarks)

</div>

<p>

<input type="submit" value="Create" />

</p>

</fieldset>

}

<div>

@Html.ActionLink("Back to List", "Index")

</div>

and in Bundle config.cs

 

 

bundles.Add(new ScriptBundle("~/bundles/jquery").Include(

"~/Scripts/jquery-{version}.js"));

bundles.Add(new ScriptBundle("~/bundles/jqueryui").Include(

"~/Scripts/jquery-ui-{version}.js"));

bundles.Add(new ScriptBundle("~/bundles/jqueryval").Include(

"~/Scripts/jquery.unobtrusive*",

"~/Scripts/jquery.validate*"));

//css

bundles.Add(new StyleBundle("~/Content/cssjqryUi").Include(

"~/Content/jquery-ui.css"));

bundles.Add(new StyleBundle("~/Content/css").Include("~/Content/site.css",

"~/Content/jquery-ui.css"));

 

whee did i went wrong ...