<!-- Paste this code into an external JavaScript file named: nextPrevious.js  -->

/* This script and many more are available free online at
The JavaScript Source :: http://javascript.internet.com
Created by: Solomon, the Sleuth :: http://www.freewebs.com/thesleuth/scripts/ */

// List image names without extension
var myImg= new Array(12)
  myImg[0]= "Slide1";
  myImg[1]= "Slide2";
  myImg[2]= "Slide3";
  myImg[3]= "Slide4";
  myImg[4]= "Slide5";
  myImg[5]= "Slide6";
  myImg[6]= "Slide7";
  myImg[7]= "Slide8";
  myImg[8]= "Slide9";
  myImg[9]= "Slide10";
  myImg[10]= "Slide11";
  myImg[11]= "Slide12";


// Tell browser where to find the image
myImgSrc = "images/";

// Tell browser the type of file
myImgEnd = ".jpg"

var i = 0;

// Create function to load image
function loadImg(){
  document.imgSrc.src = myImgSrc + myImg[i] + myImgEnd;
}

// Create link function to switch image backward
function prev(){
  if(i<1){
    var l = i
  } else {
    var l = i-=1;
  }
  document.imgSrc.src = myImgSrc + myImg[l] + myImgEnd;
}

// Create link function to switch image forward
function next(){
  if(i>10){
    var l = i
  } else {
    var l = i+=1;
  }
  document.imgSrc.src = myImgSrc + myImg[l] + myImgEnd;
}

// Load function after page loads
window.onload=loadImg;