fadeStep=4; fadeInterval=5; readingTime=10;

var currTransp=100; 
var currDir=0; 
var currNum=0; 

function nextSlide() {currNum++; if(currNum == images.length) {currNum=0;} document.getElementById("disp-slide").src=images[currNum];} 
function fadeSlide() {
	john=window.setTimeout("fadeSlide()", fadeInterval); 
	if(currTransp == 100 - fadeStep && currDir == 1) {window.clearTimeout(john);} 
	if(currTransp < 0) {currTransp=0;} 
	if(currTransp > 100) {currTransp=100;} 
	if(currDir==0 && currTransp > 0) {currTransp=currTransp-fadeStep; if(navigator.appName=="Netscape") {document.getElementById("disp-slide").style.MozOpacity=currTransp/100;} if(navigator.appName=="Microsoft Internet Explorer") {document.getElementById("disp-slide").style.filter="alpha(opacity="+currTransp+")";}} 
	else if(currDir==1 && currTransp < 100) {currTransp=currTransp+fadeStep; if(navigator.appName=="Netscape") {document.getElementById("disp-slide").style.MozOpacity=currTransp/100;} if(navigator.appName=="Microsoft Internet Explorer") {document.getElementById("disp-slide").style.filter="alpha(opacity="+currTransp+")";}} 
	else if(currDir==0 && currTransp == 0) {currDir=1; nextSlide();} 
	if(currDir==1 && currTransp == 100) {window.setTimeout("commenceFade()", (readingTime * 1000));}
} 
function commenceFade() {currDir=0; fadeSlide();}