Drawing a Chessboard in JavaScript from a 8x8 image

chess88.js

// Drawing a chessboard in JavaScript
// Jean-Christophe Taveau
// Nov 2012
// http://crazybiocomputing.blogspot.com

var imp = IJ.createImage("chessboard 8x8", "8-bit Black", 8, 8, 1);
var ip = imp.getProcessor();

// M a i n

for (var y=0;y<8;y++) {
  for (var x=0;x<8;x++) {
    if ( (x+y)%2==0)
      ip.set(x,y,255);
  }
}

//IJ.run(imp, "Size...", "width=256 height=256 position=Center zero");
imp.setProcessor(ip.resize(256));
// Display the image
imp.show();