Coordenates "mask"

mask-coordenates.js

var coords = document.querySelectorAll('[data-coordenada]');
var length = coords.length;
for (var i = 0; i < length; i++) {
	coords[i].addEventListener('keyup', function(event) {
		var value = this.value.replace(/[^\d-\.]/g, "");
		this.value = value;
	})
}