how to use javascript in c#

Question

How can I use javascript with a C# application. Also, how can I create an HTML popup window?

actually my need to create a plugin for ie, which uses JSON response to create its elemtts and need a popup for login , which should be an html file

Answer 1

If you need to call javascript function you can use

Page.RegisterStartupScript

See msdn

For the second part you can use

window.open 

method

See here

Answer 2

Perhaps you're looking for Script# ?

Script# brings the power and productivity of C# and .NET tools to Ajax development by compiling C# source code into regular JavaScript.