function fade(step) {
	var imgs = document.getElementById("headerslideshow").getElementsByTagName("img");

  step = step || 0;

  imgs[counter].style.opacity = step/100;
  imgs[counter].style.filter = "alpha(opacity=" + step + ")"; // 

  step = step + 1;

  if (step <= 100) {
  	window.setTimeout(function () { fade(step); }, 1);
	}
  else {
   	window.setTimeout(next, 6000);
	}
}

function next() {
	var imgs = document.getElementById("headerslideshow").getElementsByTagName("img");
	var fadeout = 0;
	
	if (typeof(counter) != "number") {
		counter = 0;
	}
	
	counter++;
	
	if (counter == imgs.length)	{
		
		counter = 0;
		i=0;
		
		while (i <= imgs.length-1)	{
			imgs[i].style.opacity = 0;
			i++;
		}
	}

	fade();

}