current = 0;

var rotate=true;
var rotate_delay = 6000; // delay in milliseconds (5000 = 5 secs)

function slide_show_next() {
	if (document.slideform.slide[current+1]) {
		document.images.show.src = document.slideform.slide[current+1].value;
		document.slideform.slide.selectedIndex = ++current;
   }
	else slide_show_first();
}
function slide_show_previous() {
	if (current-1 >= 0) {
		document.images.show.src = document.slideform.slide[current-1].value;
		document.slideform.slide.selectedIndex = --current;
   }
	else slide_show_last();
}
function slide_show_first() {
	current = 0;
	document.images.show.src = document.slideform.slide[0].value;
	document.slideform.slide.selectedIndex = 0;
}
function slide_show_last() {
	current = document.slideform.slide.length-1;
	document.images.show.src = document.slideform.slide[current].value;
	document.slideform.slide.selectedIndex = current;
}
function slide_show_ap() {
	if (rotate==true) rotate=false; else rotate=true;		
	slide_show_rotate();
}

function isRotate() {
	return rotate;
}

function slide_show_change() {
	current = document.slideform.slide.selectedIndex;
	document.images.show.src = document.slideform.slide[current].value;
}
function slide_show_rotate() {
		
		if (rotate==true) {
		current = (current == document.slideform.slide.length-1) ? 0 : current+1;
		if ( navigator.appName == 'Microsoft Internet Explorer' ) { 
			rotate_delay = 4000;
			document.images.show.style.filter="blendTrans(duration=4)";
			document.images.show.filters.blendTrans.Apply();
			document.images.show.filters.blendTrans.Play();
		}
		if (document.slideform.slide[current]) {
			document.images.show.src = document.slideform.slide[current].value;
			document.slideform.slide.selectedIndex = current;
			window.setTimeout("slide_show_rotate()", rotate_delay);
		}
   }
}