Ember.Handlebars.registerBoundHelper 'image_tag', (path, params..., options={})->
  alt = options.hash.alt ||= ''
  image_path = if path.substring(0,4) == 'http' then path else "/assets/#{path}"
  new Handlebars.SafeString "<img src=\"#{image_path}\" alt=\"#{alt}\" title=\"#{alt}\" >"
