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