lib/leaflet.js
function (key) {
		var k = key.split(':'),
		    coords = new L.Point(+k[0], +k[1]);
		coords.z = +k[2];
		return coords;
	}
function (key) {
		var k = key.split(':'),
		    coords = new L.Point(+k[0], +k[1]);
		coords.z = +k[2];
		return coords;
	}
function ( key ) { var k = key . split ( ':' ) , coords = new L . Point ( + k [ 0 ] , + k [ 1 ] ) ; coords . z = + k [ 2 ] ; return coords ; }
converts tile cache key to coordinates
converts tile cache key to coordinates