Fix unterminated statements

examples/point-grid.js

@@ -13,7 +13,7 @@ var rotation = document.getElementById("rotation");
 rotation.value = String(points.rotation);
 rotation.onchange = function() {
     points.setRotation(Number(rotation.value));
-}
+};
 
 var dx = document.getElementById("dx");
 var dy = document.getElementById("dy");
@@ -21,13 +21,13 @@ dx.value = String(points.dx);
 dy.value = String(points.dy);
 dx.onchange = function() {
     points.setSpacing(Number(dx.value), Number(dy.value));
-}
+};
 dy.onchange = function() {
     points.setSpacing(Number(dx.value), Number(dy.value));
-}
+};
 
 var max = document.getElementById("max");
 max.value = String(points.maxFeatures);
 max.onchange = function() {
     points.setMaxFeatures(Number(max.value));
-}
+};