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LIMBs is a Javascript Library that allows yous to rail the place of map markers inwards the border of the map fifty-fifty when the user pans away from the place of the marker.
If yous add together LIMBs to a Google Map when the user pans the map the mark icon sticks to the border of the map to human activeness every bit a visual lead dorsum to the marker's place on the map. Lots of businesses operate the Google Maps API to render a 'How to Find Us' map. With LIMBS added to the map if a user moves the map (e.g. to uncovering the nearest station) a mark volition display inwards the map border to human activeness every bit a visual lead dorsum to the business.
You tin persuasion a exhibit of LIMBs inwards activeness here and the code is available at Sourceforge.