var rand1 = 0; var useRand = 0; images = new Array; images[1] = new Image(); images[1].src = "i/image1-72dpi.jpg"; images[2] = new Image(); images[2].src = "i/image2-72dpi.jpg"; images[3] = new Image(); images[3].src = "i/image3-72dpi.jpg"; images[4] = new Image(); images[4].src = "i/image4-72dpi.jpg"; images[5] = new Image(); images[5].src = "i/image5-72dpi.jpg"; images[6] = new Image(); images[6].src = "i/image6-72dpi.jpg"; images[7] = new Image(); images[7].src = "i/image7-72dpi.jpg"; images[8] = new Image(); images[8].src = "i/image8-72dpi.jpg"; images[9] = new Image(); images[9].src = "i/image9-72dpi.jpg"; images[10] = new Image(); images[10].src = "i/image10-72dpi.jpg"; images[11] = new Image(); images[11].src = "i/image11-72dpi.jpg"; images[12] = new Image(); images[12].src = "i/image12-72dpi.jpg"; images[13] = new Image(); images[13].src = "i/image13-72dpi.jpg"; function swapPic() { var imgnum = images.length - 1; do { var randnum = Math.random(); rand1 = Math.round((imgnum - 1) * randnum) + 1; } while (rand1 == useRand); useRand = rand1; document.randimg.src = images[useRand].src; }