OffsetWidth null or undefined (Can't find solution) [closed]

Answer 1

This is a duplicate of Google MAP API Uncaught TypeError: Cannot read property 'offsetWidth' of null

The error is here (in the function Affiche_Pin):

map = new google.maps.Map(document.getElementById('map'));

There is no element with id="map" on your page. Should be:

map = new google.maps.Map(document.getElementById('map_canvas'));