# In the HTML
f.text_field :identifier, popover("Identifier", "The name the registrar uses for the course.<br/> Ex: CS-1210")

# In the HELPER
def popover(title, content, placement = "right")
    return [
        [:rel, "popover"],
        [:data, {
            :placement => placement,
            :title => title,
            :content => content
        }]
    ]
end