emberjs how to add external js files

I am novice to ember.js, This is how I have included my external java script file to ember project to call to jquery plugin in imagerotator.js

<script src="assets/imagerotator/html/js/imagerotator.js"></script>

when I am calling it from the document.ready() function it getting initialized properly.

But I need that plugin should be only in only one hadlerbar(.hbs) file. Am I doing it correctly ?

I heard there is a "didInsertElement" function in components file and define there but in my case I don't have component just have template file only.

I am novice to emberjs and sorry for my poor English.