diff --git a/life.html b/life.html
index 4158844..a72e7c9 100644
--- a/life.html
+++ b/life.html
@@ -3,7 +3,7 @@
 		<title>The Game of Life: HTML Canvas Demo</title>
 		<script language="javascript">
 			var size;
-			var speed;
+			var hertz;
 			var height;
 			var width;
 			var cells;
@@ -14,18 +14,23 @@
 				btn.value = name;
 			}
 
-			function init_cells() {
+			function gen_cells() {
 				var hcells = height/size;
 				var wcells = width/size;
-				cells = new Array(hcells);
+				var new_cells = new Array(hcells);
 				for(var i = 0; i < hcells; i++) {
-					cells[i] = new Array(wcells);
+					new_cells[i] = new Array(wcells);
 				}
 				for (var y = 0; y < hcells; y++) {
 					for (var x = 0; x < wcells; x++) {
-						cells[y][x] = false;
+						new_cells[y][x] = false;
 					}
 				}
+				return new_cells;
+			}
+			
+			function init_cells() {
+				cells = gen_cells();
 			}
 
 			function board_init() {
@@ -34,7 +39,7 @@
 				height = canvas.height;
 				btn_control_set_name('Start');
 				size = 10;
-				speed = 50;
+				hertz = 4;
 				init_cells();
 				redraw();
 			}
@@ -87,6 +92,26 @@
 
 			window.onload = board_init;
 
+
+			function step() {
+				var new_cells = gen_cells(); 
+				for(var y=0; y <= height; y++) {
+					for(var x =0 ; x <= width; x++) {
+						var n = num_neighbours(x, y);
+						if (cells[y][x] == true) {
+							if (n < 2 || n > 3) {
+								new_cells[y][x] = false;
+							} else {
+								new_cells[y][x] = true;
+							}
+						} else if (n == 3) {
+							new_cells[y][x] = true;
+						} else {
+							new_cells[y][x] = false;
+						}
+				 	}
+				}
+			}
 		</script>
 	</head>
 	<body>
