/* 
 * To change this template, choose Tools | Templates
 * and open the template in the editor.
 */

var i=1;
var maxImages = 5;

if (document.images) {
  var img1 = new Image();
  img1.src="http://www.educationresources.org.uk/wearriverstrust/images/random/1.jpg";
  var img2 = new Image();
  img2.src="http://www.educationresources.org.uk/wearriverstrust/images/random/2.jpg";
  var img3 = new Image();
  img3.src="http://www.educationresources.org.uk/wearriverstrust/images/random/3.jpg";
  var img4 = new Image();
  img4.src="http://www.educationresources.org.uk/wearriverstrust/images/random/4.jpg";
  var img5 = new Image();
  img5.src="http://www.educationresources.org.uk/wearriverstrust/images/random/5.jpg";
}

function pictureChanger(){
  setInterval("changePicture()",8000);
}

function changePicture(){  
  if (i++==maxImages){
    i=1
  }
  document.getElementById('pictureChange').src='http://www.educationresources.org.uk/wearriverstrust/images/random/'+i+'.jpg';
}