// JavaScript Document

// Set exchange speed
var ex_speed = 2000
var ex_speed_1 = 1000

// Specify images to be exchanged
var ex_images = new Array();

ex_images[0] = 'graphics/indexthumbs/bert_1.gif';
ex_images[1] = 'graphics/indexthumbs/bert_2.gif';
ex_images[2] = 'graphics/indexthumbs/bert_3.gif';

var ex_light = new Array();
ex_light[0] = 'graphics/light_blue.gif';
ex_light[1] = 'graphics/light_red.gif';

var rerun;
var j = 0;
var k = 1;
var l = 2;
var limit = ex_images.length

var pre_load = new Array()
for (i = 0; i < limit; i++){
   pre_load[i] = new Image();
   pre_load[i].src = ex_images[i];
}

var rerun_1;
var j_1 = 0;
var k_1 = 1;
var limit_1 = ex_light.length

var pre_load_1 = new Array()
for (i = 0; i < limit_1; i++){
   pre_load_1[i] = new Image();
   pre_load_1[i].src = ex_light[i];
}


function image_changer(){
   document.thumb_1.src = ex_images[j];
   document.thumb_2.src = ex_images[k];
   document.thumb_3.src = ex_images[l];
   j = j + 1;
   k = k + 1;
   l = l + 1;
   if (j > (limit-1)) j=0;
   if (k > (limit-1)) k=0;
   if (l > (limit-1)) l=0;
   rerun = setTimeout('image_changer()', ex_speed);
}

function image_changer_1(){
   document.light1.src = ex_light[j_1];
   document.light2.src = ex_light[k_1];
   document.light3.src = ex_light[j_1];
   document.light4.src = ex_light[k_1];
   document.light5.src = ex_light[j_1];
   document.light6.src = ex_light[k_1];
   document.light7.src = ex_light[j_1];
   document.light8.src = ex_light[k_1];
   document.light9.src = ex_light[j_1];
   document.light10.src = ex_light[k_1];
   document.light11.src = ex_light[j_1];
   document.light12.src = ex_light[k_1];
   document.light13.src = ex_light[j_1];
   document.light14.src = ex_light[k_1];
   document.light15.src = ex_light[j_1];
   document.light16.src = ex_light[k_1];
   document.light17.src = ex_light[j_1];
   document.light18.src = ex_light[k_1];
   document.light19.src = ex_light[j_1];
   document.light20.src = ex_light[k_1];
   document.light21.src = ex_light[j_1];
   document.light22.src = ex_light[k_1];
   document.light23.src = ex_light[j_1];
   document.light24.src = ex_light[k_1];
   document.light25.src = ex_light[j_1];
   document.light26.src = ex_light[k_1];
   j_1 = j_1 + 1;
   k_1 = k_1 + 1;
   if (j_1 > (limit_1-1)) j_1=0;
   if (k_1 > (limit_1-1)) k_1=0;
   rerun_1 = setTimeout('image_changer_1()', ex_speed_1);
}