spritesheet_animation.js

var ctx;
var count = 0;
var x;
var y;
var img = new Image();
img.src = "sprite_sheet.png";
img.onload = draw;
			
function draw() {  
	requestAnimationFrame(draw);
	ctx.clearRect(0,0,212,201);
	x = (count % 9)* 212;
	y = Math.floor(count /9) * 201;
	ctx.drawImage(img, x, y, 212, 201, 0,0, 212,201);
	if(count== 149) 
		count= 0
	else
		count++		
}

function init() {
	tx =  document.getElementById("canvas").getContext("2d");		
}