Why does visual studio think js file is a cs file?

Question

I have a ASP.NET solution in Visual Studio 2008 and I added a file identical to http://plugins.jquery.com/files/jquery.cookie.js.txt named jquery.cookie.js in a subfolder of my project containing other javascript files and Visual Studio is treating it as a C# file, giving me errors like CS1012: Too many characters in character literal and Semicolon after method or accesssor block is not valid.

Why?

Answer 1

Open the .js file properties in Visual Studio and make sure that Build Action is Content or None, but not Compile.

Answer 2

Ok, figured it out. I accidentally had runat="server" on one of the <script> tags that included the file. I guess that caused it to try to compile