// Place your application-specific JavaScript functions and classes here
// This file is automatically included by javascript_include_tag :defaults



var pe = new PeriodicalExecuter(change, 10);
var visible = 'first_image';
var hidden = 'second_image';
var image_count = 6;
var image = 1;

function change()
{
  Effect.Fade($(visible), {duration: 3.0, afterFinish: swap()});
  Effect.Appear($(hidden), {duration: 3.0});
  temp = visible;
  visible = hidden;
  hidden = temp;
  image++;
  if(image > image_count){
    image = 1;
  }
}

function swap()
{
  if($(hidden).style.display == 'none'){
    $(hidden).src = 'images/tandem_' + image + '.jpg';
  }	
}