var counter = 0;

function changeimg(p_or_n) {
	if (p_or_n == 'p') {
		counter--;
		if (counter <= 0) {
				var l = imgs.length;
				l--;
				counter = l;
		}
	} else {
		counter++;
		if (counter == imgs.length) {
			counter = 0;
		}
	}
	document.g_img.src=dir+imgs[counter];
	var l = imgs.length;
//	l--;
	c = counter;
	c++;
	document.all.viewingno.innerHTML = "Viewing number "+c+" of "+l;
}
function changeimg2(p_or_n) {
		changeimg('n');
		if (c < l) {
			setTimeout("changeimg2('n')", 2500);
		} else {
			document.form1.slideshow.checked = false;
		}
}

function sshow(b_checked) {
	if (b_checked) {
		setTimeout("changeimg2('n')", 1500);
	}
}