var rotate_delay = 3000, current = 0;

function ap(text)
{
	document.slideform.slidebutton.value = (text == "Diashow Stoppen") ? "Diashow Starten" : "Diashow Stoppen";
	rotate();
}

function rotate()
{
	if (document.slideform.slidebutton.value == "Diashow Stoppen")
	{
		current = (current == document.slideform.slide.length-1) ? 0 : current+1;
		document.images.show.src = document.slideform.slide[current].value;
		document.slideform.slide.selectedIndex = current;
		window.setTimeout("rotate()", rotate_delay);
   	}
}