// JavaScript Document

// List image names without extension
var myImg= new Array(9)
  myImg[0]= "portrait_01";
  myImg[1]= "portrait_02";
  myImg[2]= "portrait_03";
  myImg[3]= "portrait_04";
  myImg[4]= "portrait_05";
  myImg[5]= "portrait_06";
  myImg[6]= "portrait_07";
  myImg[7]= "portrait_08";
  myImg[8]= "portrait_09";
  myImg[9]= "portrait_10";
 

// Tell browser where to find the image
myImgSrc = "http://www.demetriades.de/images/portrait/";

// 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>8){
    var l = i
  } else {
    var l = i+=1;
  }
  document.imgSrc.src = myImgSrc + myImg[l] + myImgEnd;
}

// Load function after page loads
window.onload=loadImg;