fixed overflow on slide rendered images, maybe

public/scripts/functions.js

@@ -155,7 +155,7 @@ function slideBack(){
 function slideForward(){
 	var actual = document.getElementById("renderedHoneyComb").getElementsByClassName("visible")[0];
 	var actualId = actual.id.split("_")[1];
-	if(actualId < document.getElementsByClassName("renderedCanvas").length){
+	if(actualId < document.getElementsByClassName("renderedCanvas").length - 1){
 		actualId++;
 		actual.className = "renderedCanvas";
 		document.getElementById("rendered_"+actualId).className += " visible";