When another slipway is clicked, the other infowindows should close

[tormod17]

Using these answers from Stack overflow but struggling a wee bit. http://stackoverflow.com/questions/2223574/google-maps-auto-close-open-infowindows?answertab=active#tab-top #41

[hdrdavies]

Also struggling with this

[hdrdavies]

Might be worth trying to put them all in an array as per:

http://codinglogs.blogspot.co.uk/2010/05/recipe-1-infowindow-close-upon-opening.html

[Conorc1000]

:)