app/assets/javascripts/species/helpers/radio_button.js.coffee
Ember.RadioButton = Ember.View.extend
tagName: "input"
type: "radio"
attributeBindings: [ "name", "type", "value", "checked:checked:" ]
click: () ->
@set("selection", @.$().val())
checked: ( ->
@get("value") == @get("selection")
).property()