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]; }