Fill Murray image placeholder Ruby Helper

fill_murray.rb

  # Fill Murray Placeholder Images
  # example: <%= image_tag fill_murray('400x300') %>
  def fill_murray(dimensions, grayscale=false)
    width, height = dimensions.split("x")
    if grayscale == true
      'http://fillmurray.com/g/' + width + '/' + height
    else
      'http://fillmurray.com/' + width + '/' + height
    end
  end