myPix = new Array(
"http://www.mrwebsteronline.co.uk/images/top_pic.jpg",
"http://www.mrwebsteronline.co.uk/images/top_pic2.jpg",
"http://www.mrwebsteronline.co.uk/images/top_pic3.jpg",
"http://www.mrwebsteronline.co.uk/images/top_pic4.jpg",
"http://www.mrwebsteronline.co.uk/images/top_pic5.jpg",
"http://www.mrwebsteronline.co.uk/images/top_pic6.jpg",
"http://www.mrwebsteronline.co.uk/images/top_pic7.jpg",
"http://www.mrwebsteronline.co.uk/images/top_pic8.jpg",
"http://www.mrwebsteronline.co.uk/images/top_pic9.jpg",
"http://www.mrwebsteronline.co.uk/images/top_pic10.jpg",
"http://www.mrwebsteronline.co.uk/images/top_pic11.jpg",
"http://www.mrwebsteronline.co.uk/images/top_pic12.jpg",
"http://www.mrwebsteronline.co.uk/images/top_pic13.jpg",
"http://www.mrwebsteronline.co.uk/images/top_pic14.jpg",
"http://www.mrwebsteronline.co.uk/images/top_pic15.jpg",
"http://www.mrwebsteronline.co.uk/images/top_pic16.jpg",
"http://www.mrwebsteronline.co.uk/images/top_pic17.jpg",
"http://www.mrwebsteronline.co.uk/images/top_pic18.jpg",
"http://www.mrwebsteronline.co.uk/images/top_pic19.jpg",
"http://www.mrwebsteronline.co.uk/images/top_pic20.jpg",
"http://www.mrwebsteronline.co.uk/images/top_pic21.jpg",
"http://www.mrwebsteronline.co.uk/images/top_pic22.jpg")
imgCt = myPix.length

function choosePic(){
if (document.images){
randomNum = Math.floor ((Math.random() * imgCt))
document.myPicture.src = myPix[randomNum]
}
}