var imagesArray = ["", "", "", "", "", "", ""];
function displayImage(){
//the first statement should generate a random number in the range 0 to 6 (the subscript values of the image file names in the imagesArray)
var num = Math.floor(Math.random() * 7); // 0...6
//the second statement display the random image from the imagesArray array in the canvas image using the random number as the subscript value
document.canvas.src = imagesArray[num];
}
