請問我第二個圓的填充色怎么顯示不出來，代碼是哪里出錯了，謝謝

?window.onload = function(){

? ? ? ? var canvas = document.getElementById("cnavas");

? ? ? ? var cxt = canvas.getContext('2d');

? ? ? ? canvas.width =440;

? ? ? ? canvas.height =90;

????????cxt.strokeStyle = "#ecebeb";

????????cxt.moveTo(40,42);

????????cxt.lineTo(220,42);

????????cxt.lineWidth = 5;

????????cxt.stroke();

????????cxt.beginPath();

????????cxt.fillstyle = "blue";

????????cxt.arc(45, 45, 25, 0, 2*Math.PI, false);

????????cxt.fill();

????????cxt.closePath();

}