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Alternative Zebra Stripes Approach Using A Helper

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        This is a tidy way of alternating classes on some element.

In the view:

    <tr class="<%= alternate %>">

In your application helper:

def alternate(str1 = "odd", str2 = "even")
   @alternate_odd_even_state = true if @alternate_odd_even_state.nil?
   @alternate_odd_even_state = !@alternate_odd_even_state
   @alternate_odd_even_state ? str2 : str1