BACK
clicking on "#mapButton" adds class "hidden" on target
clicking on "#mapButton" removes class "hidden" on "#listButton"
clicking on "#mapButton" adds class "hidden" on "#info"
clicking on "#mapButton" adds class "hidden" on "#header"
clicking on "#mapButton" adds class "hidden" on "#footer"
clicking on "#listButton" adds class "hidden" on target
clicking on "#listButton" removes class "hidden" on "#mapButton"
clicking on "#listButton" removes class "hidden" on "#info"
clicking on "#listButton" removes class "hidden" on "#header"
clicking on "#listButton" removes class "hidden" on "#footer"