var locations = [
   	{	letter: 'A',
   		name: 'De Negen Straatjes',
			lat: '52.37031',
			lon: '4.88604'
	},
   	{	letter: 'B',
   		name: 'Museumdistrict',
			lat: '52.35786',
			lon: '4.88173'
	},
   	{	letter: 'C',
   		name: 'Kalverstraat',
			lat: '52.37006',
			lon: '4.89141'
	},
   	{	letter: 'D',
   		name: 'Leidsestraat',
			lat: '52.36524',
			lon: '4.88486'
	},
   	{	letter: 'E',
   		name: 'Antiques',
			lat: '52.36410',
			lon: '4.88928',
		address: 'Spiegelkwartier'
	},
   	{	letter: 'F',
   		name: 'Haarlemmerdijk',
			lat: '52.38296',
			lon: '4.88666'
	}
];

var locationCenter = { lat: '52.367948', lon: '4.903078' };
var locationZoom = 13;