var chess = document.getElementById('chess');

var context = chess.getContext('2d');

context.strokeStyle = "#BFBFBF";

var logo = new Image();

logo.src = "images/1.png";

logo.onload = function(){

? ? context.drawImage(loge,0,0,450,450);

? ? drawChessBoard();

}

var drawChessBoard = function(){

for(var i=0;i<15;i++){

context.moveTo(15+i*30,15);

context.lineTo(15+i*30,435);

context.stroke();

context.moveTo(15,15+i*30);

context.lineTo(435,15+i*30);

context.stroke();

}

}