How to use url with JWPlayer with asp.net web forms

See more:

ASP.NET

jQuery

This is sample example

$(document).ready(function () {

        jwplayer("PlayMP4Video").setup({
           file:miha.mp4 ,
            flashplayer: "player.swf"
        });
    });

where miha.mp4 is include in project - this is working perfect.
How to select file from C:/music/miha.mp4

i've tried
var url = "C:/music/miha.mp4";
var url = "C:\music\miha.mp4";
but non of this worked.