Rails: Get the image src only

Does rails have a way to get JUST the src o开发者_运维知识库f an image as a string? I'm trying to embed the image on a third party site in javascript.

This is the general idea (widget.js.erb):

var widgetImage = new Image();
widgetImage.src = "<=% Some groovy ruby code to just get the image src as a string %>"

Any ideas?

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Yup, you're looking for image_path

image_path('something.png')