diff --git a/js/chipsim.js b/js/chipsim.js
index 2156a90..7098771 100644
--- a/js/chipsim.js
+++ b/js/chipsim.js
@@ -175,7 +175,7 @@ function showState(str){
 		var gates = nodes[i].gates;
 		for(var t in gates) transistors[gates[t]].on = isNodeHigh(i);
 	}
-	refresh();
+//	refresh();
 }
 
 
diff --git a/js/macros.js b/js/macros.js
index 2526c18..640daf8 100644
--- a/js/macros.js
+++ b/js/macros.js
@@ -100,7 +100,7 @@ function initChip(){
 	for(var i=0;i<8;i++){setHigh('clk0'), setLow('clk0');}
 	setHigh('res');
 	for(var i=0;i<18;i++){resetStep();}
-	refresh();
+//	refresh();
 	cycle = 0;
 	trace = Array();
 	chipStatus();
@@ -118,7 +118,7 @@ function halfStep(){
 	var clk = isNodeHigh(nodenames['clk0']);
 	if (clk) {setLow('clk0'); handleBusRead(); } 
 	else {setHigh('clk0'); handleBusWrite();}
-	refresh();
+//	refresh();
 }
 
 function resetStep(){
diff --git a/js/wires.js b/js/wires.js
index b5f8bb1..9a445c8 100644
--- a/js/wires.js
+++ b/js/wires.js
@@ -57,21 +57,8 @@ function setup_part2(){
 	statbox = document.getElementById('status');
 	setupNodes();
 	setupTransistors();
-	setupLayerVisibility();
-	setupBackground();
-	setupOverlay();
-	setupHilite();
-	setupHitBuffer();
-	recenter();
-	refresh();
 	setupTable();
-	window.onkeypress = function(e){handleKey(e);}
-	hilite.onmousedown = function(e){mouseDown(e);}
 	setStatus('resetting 6502...');
-	setTimeout(setup_part3, 0);
-}
-
-function setup_part3(){
 	initChip();
 	document.getElementById('stop').style.visibility = 'hidden';
 	go();
@@ -105,219 +92,11 @@ function setupTransistors(){
 	}
 }
 
-function setupLayerVisibility(){
-	var x=document.getElementById('updateShow');
-	for (var i=0;i<x.childNodes.length;i++) {
-		if(x.childNodes[i].type='checkbox'){
-			x.childNodes[i].checked=drawlayers[x.childNodes[i].name];
-		}
-	}
-}
 
-function setupBackground(){
-	chipbg = document.getElementById('chipbg');
-	chipbg.width = 4000;
-	chipbg.height = 4000;
-	var ctx = chipbg.getContext('2d');
-	ctx.scale(chipbg.width/10000, chipbg.height/10000);
-	ctx.fillStyle = '#000000';
-	ctx.strokeStyle = 'rgba(255,255,255,0.5)';
-	ctx.lineWidth = 4;
-	ctx.fillRect(0,0,10000,10000);
-	for(var i in segdefs){
-		var seg = segdefs[i];
-		var c = seg[2];
-		if (drawlayers[c]) {
-			ctx.fillStyle = colors[c];
-			drawSeg(ctx, segdefs[i].slice(3));
-			ctx.fill();
-			if((c==0)||(c==6)) ctx.stroke();
-		}
-	}		
-}
-
-function setupOverlay(){
-	overlay = document.getElementById('overlay');
-	overlay.width = 4000;
-	overlay.height = 4000;
-	ctx = overlay.getContext('2d');
-	ctx.scale(overlay.width/10000, overlay.height/10000);
-}
-
-function setupHilite(){
-	hilite = document.getElementById('hilite');
-	hilite.width = 4000;
-	hilite.height = 4000;
-	var ctx = hilite.getContext('2d');
-	ctx.scale(hilite.width/10000, hilite.height/10000);
-}
-
-function setupHitBuffer(){
-	hitbuffer = document.getElementById('hitbuffer');
-	hitbuffer.width = 4000;
-	hitbuffer.height = 4000;
-	hitbuffer.style.visibility = 'hidden';
-	var ctx = hitbuffer.getContext('2d');
-	ctx.scale(hitbuffer.width/10000, hitbuffer.height/10000);
-	for(i in nodes) hitBufferNode(ctx, i, nodes[i].segs);
-}
-
-function hitBufferNode(ctx, i, w){
-	var low = hexdigit(i&0xf);
-	var mid = hexdigit((i>>4)&0xf);
-	var high = hexdigit((i>>8)&0xf);
-	ctx.fillStyle = '#'+high+'F'+mid+'F'+low+'F';
-	for(i in w) {
-		drawSeg(ctx, w[i]);
-		ctx.fill();
-	}
-}
 
 function hexdigit(n){return '0123456789ABCDEF'.charAt(n);}
 
 
-/////////////////////////
-//
-// Drawing Runtime
-//
-/////////////////////////
-
-function refresh(){
-	ctx.clearRect(0,0,10000,10000);
-	for(i in nodes){
-		if(isNodeHigh(i)) overlayNode(nodes[i].segs);
-	}
-}
-
-function overlayNode(w){
-	ctx.fillStyle = 'rgba(255,0,64,0.4)';
-	for(i in w) {
-		drawSeg(ctx, w[i]);
-		ctx.fill();
-	}
-}
-
-function hiliteNode(n){
-	var ctx = hilite.getContext('2d');
-	ctx.clearRect(0,0,10000,10000);
-	ctx.fillStyle = 'rgba(255,255,255,0.7)';
-	if(n==-1) return;
-	if(isNodeHigh(n[0]))
-		ctx.fillStyle = 'rgba(255,0,0,0.7)';
-
-	for(var i in n){
-		var segs = nodes[n[i]].segs;
-		for(var s in segs){drawSeg(ctx, segs[s]); ctx.fill();}
-	}
-}
-
-
-function drawSeg(ctx, seg){
-	if(noGraphics) return;
-	var dx = 400;
-	ctx.beginPath();
-	ctx.moveTo(seg[0]+dx, 10000-seg[1])
-	for(var i=2;i<seg.length;i+=2) ctx.lineTo(seg[i]+dx, 10000-seg[i+1]);
-	ctx.lineTo(seg[0]+dx, 10000-seg[1])
-}
-
-/////////////////////////
-//
-// User Interface
-//
-/////////////////////////
-
-function handleKey(e){
-	var c = e.charCode;
-	c = String.fromCharCode(c);
-	if('<>?np'.indexOf(c)==-1) return;
-	if(c=='<' && zoom>1) setZoom(zoom/1.2);
-	else if(c=='>' && zoom<16) setZoom(zoom*1.2);
-	else if(c=='?') setZoom(1);
-	else if(c=='n') stepForward();
-	else if(c=='p') stepBack();
-}
-
-function mouseDown(e){
-	e.preventDefault();
-	moved=false;	
-	dragMouseX = e.clientX;	
-	dragMouseY = e.clientY;
-	window.onmousemove = function(e){mouseMove(e)};
-	window.onmouseup = function(e){mouseUp(e)};
-}
-
-function mouseMove(e){
-	moved = true;
-	if(zoom==1) return;
-	var dx = e.clientX-dragMouseX;
-	var dy = e.clientY-dragMouseY;
-	dragMouseX = e.clientX;
-	dragMouseY = e.clientY;
-	centerx-=dx/zoom;
-	centerx = Math.max(centerx, 400/zoom);
-	centerx = Math.min(centerx, 600-400/zoom);
-	centery-=dy/zoom;
-	centery = Math.max(centery, 300/zoom);
-	centery = Math.min(centery, 600-300/zoom);
-	recenter();
-}
-
-function mouseUp(e){
-	if(!moved) handleClick(e);	
-	window.onmousemove = undefined;
-	window.onmouseup = undefined;
-}
-
-function setZoom(n){
-	zoom = n;
-	setChipStyle({
-		width: 600*n+'px',
-		height: 600*n+'px'
-	});
-	recenter();
-}
-
-function recenter(){
-	var top = -centery*zoom+300;
-	top = Math.min(top, 0);
-	top = Math.max(top, -600*(zoom-1));
-	var left = -centerx*zoom+400;
-	left = Math.min(left, 0);
-	left = Math.max(left, (zoom==1)?100:-600*zoom+800);
-	setChipStyle({
-		top: top+'px',
-		left: left+'px',
-	});
-}
-
-function handleClick(e){
-	var x = localx(hilite, e.clientX)/zoom;
-	var y = localy(hilite, e.clientY)/zoom;
-	var w = findNodeNumber(x,y);
-	if(e.shiftKey) hiliteNode(getNodeGroup(w));
-	else {var a=new Array(); a.push(w); hiliteNode(a);}
-	var cx = Math.round(x*10000/600);
-	var cy = Math.round(y*10000/600);	
-	if(w==-1) setStatus('x:',cx,'<br>','y:',cy);
-	else {setStatus('x:',cx, 'y:', cy,'<br>','node:',w, nodeName(w));}
-}
-
-function findNodeNumber(x,y){
-	var ctx = hitbuffer.getContext('2d');
-	var pixels = ctx.getImageData(x*4000/600, y*4000/600, 2, 2).data;
-	if(pixels[0]==0) return -1;
-	var high = pixels[0]>>4;
-	var mid = pixels[1]>>4;
-	var low = pixels[2]>>4;
-	return (high<<8)+(mid<<4)+low;
-}
-
-function updateShow(layer, on){
-	drawlayers[layer]=on;
-	setupBackground();
-}
-
 /////////////////////////
 //
 // Etc.
@@ -326,7 +105,7 @@ function updateShow(layer, on){
 
 function setChipStyle(props){
 	for(var i in props){
-		chipbg.style[i] = props[i];
+//		chipbg.style[i] = props[i];
 		overlay.style[i] = props[i];
 		hilite.style[i] = props[i];
 		hitbuffer.style[i] = props[i];