What is Reference Script Library in asp.net mvc 3?

I noticed when you make a strongly typed view you have an option to check a box called "reference script libraries"

http://gyazo.com/289392fc957866f19c4ae6d8b51a037e.png

In my case I don't have any strongly typed 开发者_如何学Cviews but what references does it add?

It just adds this:

<script src="@Url.Content("~/Scripts/jquery.validate.min.js")" type="text/javascript"></script>

<script src="@Url.Content("~/Scripts/jquery.validate.unobtrusive.min.js")" type="text/javascript"></script>