/**
 * draws a grid using 2 lines of code
 */
window.onload = function() {
    // initialize a Wes Mantooth canvas
    var i = $w.canvas.init(document.getElementById('target'));
    // draw the grid
    /**
     * @param {Number} reference the canvas
     * @param {Number} width
     * @param {Number} height
     * @param {Number} grid unit
     */
    $w.draw.grid(i,1000,1000,10);
}