Help needed !!

Help needed !!

I am writing this code in a ASP.NET MVC4 Visual Studio application:

 <script src="~/Scripts/jquery.nivo.slider.pack.js" type="text/javascript"></script>
<script src="~/Scripts/jquery-1.7.1.min.js" type="text/javascript"></script>
<script src="@Url.Content("~/Scripts/jquery-1.7.1.js")" type="text/javascript"></script>
<script type="text/javascript">
                $(window).load(function () {
                    $('#slider').nivoSlider();
            });
        </script>


This is a code for a slideshow to be displayed on the page.
But, it says JQuery not found - Anonymous function. and therefore all the images are appearing one on another
But the same code runs good when written in a .html page.