var currentdate = 0
var core = 0

function StringArray (n) {
  this.length = n;
  for (var i =1; i <= n; i++) {
    this[i] = ' '

  }
}

image = new StringArray(13)
image[0] = 'http://www.joshperry.force9.co.uk/Media/sides_etc/0.gif'
image[1] = 'http://www.joshperry.force9.co.uk/Media/sides_etc/1.gif'
image[2] = 'http://www.joshperry.force9.co.uk/Media/sides_etc/2.gif'
image[3] = 'http://www.joshperry.force9.co.uk/Media/sides_etc/3.gif'
image[4] = 'http://www.joshperry.force9.co.uk/Media/sides_etc/4.gif'
image[5] = 'http://www.joshperry.force9.co.uk/Media/sides_etc/5.gif'
image[6] = 'http://www.joshperry.force9.co.uk/Media/sides_etc/6.gif'
image[7] = 'http://www.joshperry.force9.co.uk/Media/sides_etc/7.gif'
image[8] = 'http://www.joshperry.force9.co.uk/Media/sides_etc/8.gif'
image[9] = 'http://www.joshperry.force9.co.uk/Media/sides_etc/9.gif'
image[10] = 'http://www.joshperry.force9.co.uk/Media/sides_etc/10.gif'
image[11] = 'http://www.joshperry.force9.co.uk/Media/sides_etc/11.gif'
image[12] = 'http://www.joshperry.force9.co.uk/Media/sides_etc/12.gif'

var ran = 60/image.length

function ranimage() {
  currentdate = new Date()
  core = currentdate.getSeconds()
  core = Math.floor(core/ran)
    return(image[core])
}

document.write("<img src='" +ranimage()+ "'>")