Depending on the screen size want to replace the image

I'm actually trying load image based on its screen size. Code seems to be right but for some reason its not displaying the image. Path is right开发者_如何学Go..Any insight?? Here is my Page and my code

You have the following line:

$("#wide").attr("src","http://imgur.com/TPwe7");

That's putting a src attribute on the div. You want to put it on the img (and use a real image URL):

$("img", detector).attr("src","http://i.imgur.com/sW6hi.png");

Replace

$("#wide").attr("src","http://imgur.com/TPwe7");

With

$("#wide").find('img').attr("src","http://imgur.com/TPwe7");