/* Spoilage slide script by Jon Williams
	©2008 IGG Software, LLC						*/

var current_slide = 1;
var max_slides = 6;
var slideshow;

window.addEvent('domready', function() {
	// set up initial slide positions
	$('slide1').style.left = '0px';
	$('prev').fade('hide');
	$('next').fade('hide').fade('in');
	// start the slideshow after the first slide has finished loading
	image1 = new Image();
	image1.src = "images/slide1.png";
	image1.onload = function() { slideshow = self.setInterval("nextSlide()",5000) };
});



function nextSlide() {
	if (current_slide < max_slides) {
		last = $("slide"+current_slide);
		current_slide++;
		next = $("slide"+current_slide);
		last.tween('left','0px','-340px');
		next.setStyle('left','340px').fade('show').tween('left','340px','0px');
	} else if (current_slide == max_slides) {
		current_slide = 1;
		$('slide'+max_slides).fade('out');
		$('slide1').fade('hide').setStyle('left','0px').fade('in');
	}
	checkButtons();
}

function previousSlide() {
	if (current_slide > 1) {
		last = $("slide"+current_slide);
		current_slide--;
		prev = $("slide"+current_slide);
		last.tween('left','0px','340px');
		prev.tween('left','-340px','0px');
	}
	checkButtons();
}

function checkButtons() {
	if (current_slide == 1)
		$('prev').fade('out');
	else
		$('prev').fade('in');
	
	if (current_slide == max_slides)
		$('next').fade('out');
	else
		$('next').fade('in');
}

/* control spam */
function antiSpamMail (name,sld,tld)
{
	var at   = "@";
	window.location.href = "mailto:" + name + at + sld + "." + tld;
}

/* give anchors with attribute rel="external" a target attribute of "_blank" */

function external() {
 if (document.getElementsByTagName) {
  var i, a;
  a = document.getElementsByTagName('a');
  for (i in a) {
   if (a[i].getAttribute('href') && 
       a[i].getAttribute('rel') == 'external') a[i].target = '_blank';
  }
 }
}

window.onload = external;