NMSjs: Massive rework of map drawing

Still half-way done, but it's looking better.

Confirmed working right now: Comment spotter and disco.

5 files changed, 333 insertions, 731 deletions

diff --git a/web/nms.gathering.org/index.html b/web/nms.gathering.org/index.html
index b5ef88e..f2776e8 100644
--- a/web/nms.gathering.org/index.html
+++ b/web/nms.gathering.org/index.html
@@ -70,16 +70,12 @@
 		<li class="divider"> </li>
 		<li class="dropdown-header">View</li>
 		<li><a href="#" onclick="toggleNightMode()">Toggle Night Mode</a></li>
-		<li><a href="#" onclick="showBlurBox()">Tweak Night Mode blur</a></li>
-		<li><a href="#" onclick='showLayer("layerVisibility");'>Set layer visibility</a></li>
 		<li class="divider"> </li>
 		<li class="dropdown-header">Map scale</li>
 		<li><a href="#"><label id="scaler-text" for='scaler'></label><input type="range" id="scaler" name="points" min="0.2" max="3" step="0.01" onchange="scaleChange()" /></a></li>
 		<li class="divider"> </li>
 		<li class="dropdown-header">Help</li>
-		<li><a href="#" onclick="toggleLayer('aboutData');">About TG15 data</a></li>
 	  	<li><a href="#" onclick="toggleLayer('aboutBox');" >About NMS</a></li>
-	  	<li><a href="#" onclick="toggleLayer('aboutPerformance');" >About Performance</a></li>
 	  	<li><a href="#" onclick="toggleLayer('aboutKeybindings');" >Keyboard Shortcuts</a></li>
 		<li><a onclick="showTimerDebug(); hideSwitch();" style="cursor: pointer;" >Debug timers</a></li>
 	      </ul>
@@ -107,113 +103,6 @@
 
       <div class="row-fluid">
 	<div class="span12">
-	  <div id="aboutData" class="col-md-4" style="position: absolute; display:none; z-index: 130;">
-	    <div id="abotData" class="panel panel-default">
-	      <div class="panel-heading">
-		<h3 class="panel-title">About the TG15 data
-		  <button type="button" class="close" aria-label="Close" onclick="document.getElementById('aboutData').style.display = 'none';" style="float: right">
-		    <span aria-hidden="true">&times;</span>
-		  </button>
-		</h3>
-	      </div>
-	      <div class="panel-body">
-		<p>The data you see from The Gathering 2015 will seem
-		"broken up". This is not because we don't have data from
-		the first day, but because the backend was re-written on
-		day 1/2 and this web app only uses the new API.</p>
-		<p>NMS was set up on March 30th (Monday). Data started
-		pouring in on the same day. </p>
-		<p>Ping data is available for the entire event with 1
-		second resolution. We "lost" data from the 30th because we
-		re-inserted the switches (We have the ping data, but not
-		the mapping between switch ID number and actual
-		switch).</p>
-		<p>DHCP data is available only for the last detected DHCP
-		ack (no history, except extensive text-based logs)</p>
-		<p>Uplink status is available for most of the event, but
-		not exposed here. We only expose traffic-based uplink state
-		here, which, again, is based on the new API.</p>
-		<p>Traffic status was temporarily bugged, but is available
-		from late on day 2.</p>
-		<p>Temperature data is available from day 2.</p>
-		<p>Plans are being made to ensure that we don't have gaps
-		like these in the future.</p>
-		<p>It is also worth mentioning that things like switch
-		positions are not logged historically, so you see the final
-		position on the map.</p>
-	      </div>
-	    </div>
-	  </div>
-	  <div id="aboutPerformance" class="col-md-4" style="position: absolute; display:none; z-index: 130;">
-	    <div class="panel panel-default">
-	      <div class="panel-heading">
-		<h3 class="panel-title">Performance
-		  <button type="button" class="close" aria-label="Close" onclick="document.getElementById('aboutPerformance').style.display = 'none';" style="float: right">
-		    <span aria-hidden="true">&times;</span>
-		  </button>
-		</h3>
-	      </div>
-	      <table class="table">
-		<tr>
-		  <td>Outstanding AJAX requests</td>
-		  <td id="outstandingAJAX"></td>
-		</tr>
-		<tr>
-		  <td>Overflowed AJAX requests</td>
-		  <td id="overflowAJAX"></td>
-		</tr>
-	      </table>
-	      <div class="panel-body">
-		<p>NMS performance is surprisingly complex. It's split into
-		several parts and dealt with differently.</p>
-		<p>Poller performance is a matter of efficiently collecting
-		data and is mostly handled in the Perl code (and ensuring
-		we use sensible database schemas).</p>
-		<p>Backend performance for the GUI is mostly about not
-		killing the database server. We do NOT try to protect
-		against malicious clients directly, since this is a
-		management system not public-facing, but Varnish is used to
-		cache requests. To be able to do that properly, we need use
-		absolute time when reviewing past events (so "2015-04-02
-		17:30:00", not "2 hours ago"). We've also tried to minimize
-		the stupidity in the queries. There's still work to be done
-		here, though, as we need to split up a few large backend
-		requests (port-state.pl).</p>
-		<p>Front-end performance is mostly about drawing things
-		sensibly and not completely bombing the memory usage. And
-		about gracefully handling slow backends  This will affect
-		you. For example, if you are reviewing past events and the
-		DB is struggling, we'll simply skip a backend request if we
-		have too many outstanding requests, that means you may jump
-		from "17:00" to "18:30" instead of going through
-		"17:30" and "18:00" too. This is working as intended. It
-		also means that you can happily spam the forward/backward
-		keyboard bindings to jump 18 hours forward: You'll overflow
-		the extra AJAX requests for individual requests, but you'll
-		land at the right time when you let go. But there could be
-		a 1 second delay (or more if the backend really struggles)
-		since you'll have to rely on the periodic backend requests
-		instead of the explicit ones triggered on hitting a
-		button.</p>
-		<p>Note that the counters on top are updated on a timer,
-		but this timer is set up at the same time as everything
-		else, which means that it's likely to update at the same
-		time as we fire off AJAX requests, so the 'outstanding ajax
-		requests' counter might either show almost constantly 3 or
-		0 depending on what timer happens to fire first. This does
-		NOT mean that NMS has 3 requests all the time, just that
-		we're checking right after we fire off AJAX requests every
-		time.</p>
-		<p>NMS also tries to handle drawing OK, which is why things
-		are split into different HTML5 canvases. Blur and text are
-		particularly expensive, but there's no reason to re-paint
-		that all the time, etc).</p>
-		<p>The basic performance experiments are done on TG15 data
-		using a laptop and a VM with 6GB of memory, so it should
-		hold up quite well on "proper" hardware.</p>
-	      </div>
-	    </div>
-	  </div>
 	  <div id="aboutKeybindings" class="col-md-4" style="position: absolute; display:none; z-index: 130;">
 	    <div class="panel panel-default">
 	      <div class="panel-heading">
@@ -408,28 +297,6 @@
 	      </div>
 	    </div>
 	  </div>
-	  <div id="blurManic" class="panel panel-default" style="display: none; position: absolute; z-index: 100;">
-	    <div class="panel-heading">
-	      <h1 class="panel-title">Blur tweaks
-		<button type="button" class="close" aria-labe="Close" onclick="document.getElementById('blurManic').style.display = 'none';" style="float: right;">
-		  <span aria-hidden="true">&times;</span>
-		</button>
-	      </h1>
-	    </div>
-	    <div class="panel-body">
-	      <div class="form">
-		<div class="form-group">
-		  <label for="shadowBlur">Blur strength</label>
-		  <input type="number" id="shadowBlur" class="form-control">
-		</div>
-		<div class="form-group">
-		  <label for="shadowColor">Blur color</label>
-		  <input type="color" id="shadowColor" class="form-control">
-		</div>
-		<button type="button" class="btn btn-default" onclick="applyBlur();">Apply</button>
-	      </div>
-	    </div>
-	  </div>
 	</div>
 	<div id="debugTimers" class="panel panel-default" style="display: none; position: absolute; z-index: 100;">
 	  <div class="panel-heading">
@@ -447,68 +314,6 @@
 	  </div>
 	  <table id="timerTable"> </table>
 	</div>
-	<div id="layerVisibility" class="panel panel-default" style="display: none; position: absolute; z-index: 100;">
-	  <div class="panel-heading">
-	    <h1 class="panel-title">Set layer visibility
-	      <button type="button" class="close" aria-labe="Close" onclick="document.getElementById('layerVisibility').style.display = 'none';" style="float: right;">
-		<span aria-hidden="true">&times;</span>
-	      </button>
-	    </h1>
-	  </div>
-	  <div class="panel-body">
-	    <table id="visibilityTable" class="table">
-	      <tr>
-		<td>Background</td>
-		<td>
-		  <button onclick='hideLayer("bgCanvas");'>Hide</button>
-		  <button onclick='showLayer("bgCanvas");'>Show</button>
-		</td>
-	      </tr>
-	      <tr>
-		<td>Linknets</td>
-		<td>
-		  <button onclick='hideLayer("linkCanvas");'>Hide</button>
-		  <button onclick='showLayer("linkCanvas");'>Show</button>
-		</td>
-	      </tr>
-	      <tr>
-		<td>Blur</td>
-		<td>
-		  <button onclick='hideLayer("blurCanvas");'>Hide</button>
-		  <button onclick='showLayer("blurCanvas");'>Show</button>
-		</td>
-	      </tr>
-	      <tr>
-		<td>Switches</td>
-		<td>
-		  <button onclick='hideLayer("switchCanvas");'>Hide</button>
-		  <button onclick='showLayer("switchCanvas");'>Show</button>
-		</td>
-	      </tr>
-	      <tr>
-		<td>Text</td>
-		<td>
-		  <button onclick='hideLayer("textCanvas");'>Hide</button>
-		  <button onclick='showLayer("textCanvas");'>Show</button>
-		</td>
-	      </tr>
-	      <tr>
-		<td>TextInfo</td>
-		<td>
-		  <button onclick='hideLayer("textInfoCanvas");'>Hide</button>
-		  <button onclick='showLayer("textInfoCanvas");'>Show</button>
-		</td>
-	      </tr>
-	      <tr>
-		<td>Timestamp</td>
-		<td>
-		  <button onclick='hideLayer("topCanvas");'>Hide</button>
-		  <button onclick='showLayer("topCanvas");'>Show</button>
-		</td>
-	      </tr>
-	    </table>
-	  </div>
-	</div>
 
 	<canvas id="bgCanvas" width="1920" height="1032" style="position: absolute; z-index: 1;"> </canvas>
 	<canvas id="linkCanvas" width="1920" height="1032" style="position: absolute; z-index: 10;"> </canvas>
@@ -527,6 +332,7 @@
     <script src="js/jquery.min.js" type="text/javascript"></script>
     <script src="js/bootstrap.min.js" type="text/javascript"></script>
     <script type="text/javascript" src="js/nms-data.js"></script>
+    <script type="text/javascript" src="js/nms-map.js"></script>
     <script type="text/javascript" src="js/nms.js"></script>
     <script type="text/javascript" src="js/nms-color-util.js"></script>
     <script type="text/javascript" src="js/nms-map-handlers.js"></script>
diff --git a/web/nms.gathering.org/js/nms-color-util.js b/web/nms.gathering.org/js/nms-color-util.js
index 965a10e..f50ee04 100644
--- a/web/nms.gathering.org/js/nms-color-util.js
+++ b/web/nms.gathering.org/js/nms-color-util.js
@@ -49,21 +49,22 @@ function getRandomColor()
  */
 function drawGradient(gradients)
 {
-	var gradient = dr.hidden.ctx.createLinearGradient(0,0,1000,0);
+	var ctx = nmsMap._c.hidden.ctx; // FIXME: Move it away...
+	var gradient = ctx.createLinearGradient(0,0,1000,0);
 	var stops = gradients.length - 1;
 	nms.gradients = gradients;
 	for (var color in gradients) {
 		var i = color / stops;
 		gradient.addColorStop(i, gradients[color]);
 	}
-	dr.hidden.ctx.beginPath();
-	dr.hidden.ctx.strokeStyle = gradient;
-	dr.hidden.ctx.moveTo(0,0);
-	dr.hidden.ctx.lineTo(1000,0);
-	dr.hidden.ctx.lineWidth = 10;
-	dr.hidden.ctx.closePath();
-	dr.hidden.ctx.stroke();
-	dr.hidden.ctx.moveTo(0,0);
+	ctx.beginPath();
+	ctx.strokeStyle = gradient;
+	ctx.moveTo(0,0);
+	ctx.lineTo(1000,0);
+	ctx.lineWidth = 10;
+	ctx.closePath();
+	ctx.stroke();
+	ctx.moveTo(0,0);
 }
 
 /*
@@ -83,7 +84,8 @@ function getColorStop(x) {
  * made generic.
  */
 function getColor(x,y) {
-	var imageData = dr.hidden.ctx.getImageData(x, y, 1, 1);
+	var ctx = nmsMap._c.hidden.ctx; // FIXME: Move it away...
+	var imageData = ctx.getImageData(x, y, 1, 1);
 	var data = imageData.data;
 	if (data.length < 4)
 		return false;
diff --git a/web/nms.gathering.org/js/nms-map-handlers.js b/web/nms.gathering.org/js/nms-map-handlers.js
index eaa62fd..ce1d6db 100644
--- a/web/nms.gathering.org/js/nms-map-handlers.js
+++ b/web/nms.gathering.org/js/nms-map-handlers.js
@@ -2,8 +2,7 @@
  * Map handlers/updaters for NMS.
  *
  * These are functions used to determine how the map should look in NMS.
- * They represent vastly different information, but in a uniform way. I
- * suppose this is the c++-type of object orientation...
+ * They represent vastly different information, but in a uniform way.
  *
  * The idea is that these updaters only parse information that's fetched by
  * NMS - they do not request additional information. E.g., ping data is
@@ -11,6 +10,10 @@
  * displayed. This might seem redundant, but it means any handler can
  * utilize information from any aspect of NMS, and thus opens NMS up to the
  * world of intelligent maps base don multiple data sources.
+ *
+ * Warning: This paradigm will change. Handlers will be expected to
+ * register their own callbacks for nmsData. Work in progress.
+ *
  */
 
 /*
@@ -257,7 +260,6 @@ function tempInit()
 function pingUpdater()
 {
 	if (!nms.ping_data || !nms.ping_data["switches"]) {
-		resetColors();
 		return;
 	}
 	for (var sw in nms.switches_now["switches"]) {
@@ -291,35 +293,36 @@ function commentUpdater()
 {
 	var realnow = Date.now();
 	var now = Math.floor(realnow / 1000);
-	for (var sw in nms.switches_now["switches"]) {
+	if (nmsData.comments == undefined || nmsData.comments.comments == undefined) {
+		return
+	}
+	for (var sw in nmsData.comments.comments) {
 		var c = "white";
-		var s = nms.switches_now["switches"][sw];
-		if (s["comments"] && s["comments"].length > 0) {
-			var then = 0;
-			var active = 0;
-			var persist = 0;
-			c = "yellow";
-			for (var v in s["comments"]) {
-				var then_test = parseInt(s["comments"][v]["time"]);
-				if (then_test > then && s["comments"][v]["state"] != "inactive")
-					then = then_test;
-				if (s["comments"][v]["state"] == "active") {
-					active++;
-				}
-				if (s["comments"][v]["state"] == "persist")
-					persist++;
-			}
-			if (then > (now - (60*15))) {
-				c = red;
-			} else if (active > 0) {
-				c = orange;
-			} else if (persist > 0) {
-				c = blue;
-			} else {
-				c = green;
+		var s = nmsData.comments.comments[sw];
+		var then = 0;
+		var active = 0;
+		var persist = 0;
+		c = "yellow";
+		for (var v in s["comments"]) {
+			var then_test = parseInt(s["comments"][v]["time"]);
+			if (then_test > then && s["comments"][v]["state"] != "inactive")
+				then = then_test;
+			if (s["comments"][v]["state"] == "active") {
+				active++;
 			}
+			if (s["comments"][v]["state"] == "persist")
+				persist++;
 		}
-		setSwitchColor(sw, c);
+		if (then > (now - (60*15))) {
+			c = red;
+		} else if (active > 0) {
+			c = orange;
+		} else if (persist > 0) {
+			c = blue;
+		} else {
+			c = green;
+		}
+		nmsMap.setSwitchColor(sw, c);
 	}
 }
 
@@ -337,11 +340,15 @@ function commentInit()
  */
 function randomizeColors()
 {
-	for (var i in nms.switches_now.linknets) {
+/*	for (var i in nms.switches_now.linknets) {
 		setLinknetColors(i, getRandomColor(), getRandomColor());
 	}
-	for (var sw in nms.switches_now.switches) {
-		setSwitchColor(sw, getRandomColor());
+*/
+	if (nmsData.switches == undefined  || nmsData.switches.switches == undefined) {
+		return;
+	}
+	for (var sw in nmsData.switches.switches) {
+		nmsMap.setSwitchColor(sw, getRandomColor());
 	}
 }
 
diff --git a/web/nms.gathering.org/js/nms-map.js b/web/nms.gathering.org/js/nms-map.js
new file mode 100644
index 0000000..69a76e0
--- /dev/null
+++ b/web/nms.gathering.org/js/nms-map.js
@@ -0,0 +1,265 @@
+"use strict";
+
+/* WORK
+ * IN
+ * PROGRESS
+ *
+ * Interface:
+ *
+ * nmsMap.init() - start things up
+ * nmsMap.setSwitchColor(switch,color)
+ * nmsMap.setSwitchInfo(switch,info)
+ */
+
+
+var nmsMap = nmsMap || {
+	stats: {
+		earlyDrawAll:0,
+		colorChange:0,
+		colorSame:0,
+		resizeEvents:0,
+		switchInfoUpdate:0,
+		switchInfoSame:0
+	},
+	contexts: ["bg","link","blur","switch","text","textInfo","top","input","hidden"],
+	_info: {},
+	_settings: {
+		fontLineFactor: 3,
+		textMargin: 3,
+		xMargin: 10,
+		yMargin: 20
+	},
+	scale: 1,
+	_orig: { width:1920, height:1032 },
+	_canvas: {
+		get width() { return nmsMap.scale * nmsMap._orig.width; },
+		get height() { return nmsMap.scale * nmsMap._orig.height; }
+	},
+
+	_color: { },
+	_c: {}
+}
+
+nmsMap.init = function() {
+	this._initContexts();
+	this._drawBG();
+	nmsData.registerSource("switches","/api/public/switches",function(){nmsMap._drawAllSwitches();});
+	window.addEventListener('resize',nmsMap._resizeEvent,true);
+	document.addEventListener('load',nmsMap._resizeEvent,true);
+	this._drawAllSwitches();
+}
+
+nmsMap.setSwitchColor = function(sw, color) {
+	if (this._color[sw] != color) {
+		this._color[sw] = color;
+		this._drawSwitch(sw);
+		this.stats.colorChange++;
+	} else {
+		this.stats.colorSame++;
+	}
+}
+
+nmsMap.reset = function() {
+	for (var sw in this._color) {
+		nmsMap.setSwitchColor(sw, undefined);
+	}
+	for (var sw in this._info) {
+		nmsMap.setSwitchInfo(sw, undefined);
+	}
+}
+
+nmsMap.setSwitchInfo = function(sw,info) {
+	if (this._info[sw] != info) {
+		this._info[sw] = info;
+		this._drawSwitchInfo(sw);
+		this.stats.switchInfoUpdate++;
+	} else {
+		this.stats.switchInfoSame++;
+	}
+}
+
+nmsMap._initContext = function(name) {
+	this._c[name] = {};
+	this._c[name].c = document.getElementById(name + "Canvas");
+	this._c[name].ctx = this._c[name].c.getContext('2d');
+}
+
+nmsMap._initContexts = function() {
+	for (var context in this.contexts) {
+		this._initContext(this.contexts[context]);
+	}
+}
+
+nmsMap._resizeEvent = function() {
+	var width = window.innerWidth - nmsMap._c.bg.c.offsetLeft;
+	var height = window.innerHeight - nmsMap._c.bg.c.offsetTop;
+
+	var xScale = (width / (nmsMap._orig.width + nmsMap._settings.xMargin));
+	var yScale = (height / (nmsMap._orig.height + nmsMap._settings.yMargin));
+	
+	if (xScale > yScale) {
+		nmsMap.scale = yScale;	
+	} else {
+		nmsMap.scale = xScale;
+	}
+	for (var a in nmsMap._c) {
+		/*
+		 * Resizing this to a too small size breaks gradients on smaller screens.
+		 */
+		if (a == 'hidden')
+			continue;
+		nmsMap._c[a].c.height = nmsMap._canvas.height;
+		nmsMap._c[a].c.width = nmsMap._canvas.width;
+	}
+	nmsMap._drawBG();
+	nmsMap._drawAllSwitches();
+	nmsMap.stats.resizeEvents++;
+}
+
+nmsMap.setNightMode = function(toggle) {
+	if (this._nightmode == toggle)
+		return;
+	this._nightmode = toggle;
+	nmsMap._drawBG();
+}
+
+nmsMap._drawBG = function() {
+	var imageObj = document.getElementById('source');
+	this._c.bg.ctx.drawImage(imageObj, 0, 0, nmsMap._canvas.width, nmsMap._canvas.height);
+	if(this._nightmode)
+		nmsMap._invertBG();
+}
+
+nmsMap._invertBG = function() {
+	var imageData = this._c.bg.ctx.getImageData(0, 0, nmsMap._canvas.width, nmsMap._canvas.height);
+	var data = imageData.data;
+
+	for(var i = 0; i < data.length; i += 4) {
+		data[i] = 255 - data[i];
+		data[i + 1] = 255 - data[i + 1];
+		data[i + 2] = 255 - data[i + 2];
+	}
+	this._c.bg.ctx.putImageData(imageData, 0, 0);
+}
+
+nmsMap._getBox = function(sw) {
+	var box = nmsData.switches.switches[sw]['placement'];
+	box.x = parseInt(box.x);
+	box.y = parseInt(box.y);
+	box.width = parseInt(box.width);
+	box.height = parseInt(box.height);
+	return box;
+}
+
+nmsMap._drawSwitch = function(sw)
+{
+	var box = this._getBox(sw);
+	var color = nmsMap._color[sw];
+	if (color == undefined) {
+		color = blue;
+	}
+	this._c.switch.ctx.fillStyle = color;
+	this._drawBox(this._c.switch.ctx, box['x'],box['y'],box['width'],box['height']);
+	this._c.switch.ctx.shadowBlur = 0;
+	this._drawSidewaysText(this._c.text.ctx, sw,box);
+	/*
+		if ((box['width'] + 10 )< box['height']) {
+			//
+		} else {
+			//drawRegular(dr.text.ctx,sw,box['x'],box['y'],box['width'],box['height']);
+		}
+	*/
+}
+
+nmsMap._drawSwitchInfo = function(sw) {
+	var box = this._getBox(sw);
+	if (this._info[sw] == undefined) {
+		this._clearBox(this._c.textInfo.ctx, box);
+	} else {
+		this._drawSidewaysText(this._c.textInfo.ctx, this._info[sw], box, "right");
+	}
+}
+
+nmsMap._clearBox = function(ctx,box) {
+	ctx.save();
+	ctx.scale(this.scale,this.scale);
+	ctx.clearRect(box['x'], box['y'], box['width'], box['height']);
+	ctx.restore();
+}
+
+nmsMap._drawSidewaysText = function(ctx, text, box, align) {
+	this._clearBox(ctx,box);
+	ctx.save();
+	ctx.scale(this.scale, this.scale); // FIXME: Do it everywhere?
+	ctx.lineWidth = Math.floor(nmsMap._settings.fontLineFactor);
+	if (ctx.lineWidth == 0) {
+		ctx.lineWidth = Math.round(nms._settings.fontLineFactor);
+	}
+	ctx.fillStyle = "white";
+	ctx.strokeStyle = "black";
+	ctx.translate(box.x + box.width - this._settings.textMargin, box.y + box.height - this._settings.textMargin);
+	ctx.rotate(Math.PI * 3/2);
+	if (align == "right") {
+		ctx.textAlign = "right";
+		/*
+		 * Margin*2 is to compensate for the margin above.
+		 */
+		ctx.translate(box.height - this._settings.textMargin*2,0);
+	}
+	ctx.strokeText(text, 0, 0);
+	ctx.fillText(text, 0, 0);
+	ctx.restore();
+}
+
+nmsMap._drawAllSwitches = function() {
+	if (nmsData.switches == undefined) {
+		this.stats.earlyDrawAll++;
+		return;
+	}
+	for (var sw in nmsData.switches.switches) {
+		this._drawSwitch(sw);
+	}
+}
+
+nmsMap._drawBox = function(ctx, x, y, boxw, boxh) {
+	ctx.save();
+	ctx.scale(this.scale, this.scale); // FIXME
+	ctx.fillRect(x,y, boxw, boxh);
+	ctx.lineWidth = 1;
+	ctx.strokeStyle = "#000000";
+	ctx.strokeRect(x,y, boxw, boxh);
+	ctx.restore();
+
+}
+
+nmsMap._connectSwitches = function(sw1, sw2, color1, color2) {
+	nmsMap._connectBoxes(this._getBox(sw1), this._getBox(sw2),
+			     color1, color2);
+}
+
+/*
+ * Draw a line between two boxes, with a gradient going from color1 to
+ * color2.
+ */
+nmsMap._connectBoxes = function(box1, box2,color1, color2) {
+	var ctx = nmsMap._c.link.ctx;
+	if (color1 == undefined)
+		color1 = blue;
+	if (color2 == undefined)
+		color2 = blue;
+	var x0 = Math.floor(box1.x + box1.width/2);
+	var y0 = Math.floor(box1.y + box1.height/2);
+	var x1 = Math.floor(box2.x + box2.width/2);
+	var y1 = Math.floor(box2.y + box2.height/2);
+	ctx.save();
+	ctx.scale(nmsMap.scale, nmsMap.scale);
+	var gradient = ctx.createLinearGradient(x1,y1,x0,y0);
+	gradient.addColorStop(0, color1);
+	gradient.addColorStop(1, color2);
+	ctx.strokeStyle = gradient;
+	ctx.moveTo(x0,y0);
+	ctx.lineTo(x1,y1); 
+	ctx.lineWidth = 5;
+	ctx.stroke();
+	ctx.restore();
+}
diff --git a/web/nms.gathering.org/js/nms.js b/web/nms.gathering.org/js/nms.js
index b47b131..cd62579 100644
--- a/web/nms.gathering.org/js/nms.js
+++ b/web/nms.gathering.org/js/nms.js
@@ -3,30 +3,14 @@ var nms = {
 	stats:{}, // Various internal stats
 	updater:undefined, // Active updater
 	speed:0, // Current aggregated speed
-	drawn:false, // Set to 'true' when switches are drawn
 	switch_showing:"", // Which switch we are displaying (if any).
 	switchInfo:{},
-	switchInfoDrawn:{},
 	repop_switch:false, // True if we need to repopulate the switch info when port state updates (e.g.: added comments);
 	repop_time:false, // Timestamp in case we get a cached result
 	nightMode:false, 
-	/*
-	 * Switch-specific variables. These are currently separate from
-	 * "switches_now" because switches_now is reset every time we get
-	 * new data.
-	 */
-	nightBlur:{}, // Have we blurred this switch or not?
-	shadowBlur:10,
-	shadowColor:"#EEEEEE",
-	switch_color:{},  // Color for switch
-	linknet_color:{}, // color for linknet
-	textDrawn:{}, // Have we drawn text for this switch?
 	_now: false,
 	get now() { return this._now },
 	set now(v) { this._now = n; nmsData.now = n; },
-	fontSize:16, // This is scaled too, but 16 seems to make sense.
-	fontFace:"Verdana",
-	fontLineFactor:3,
 	/*
 	 * Various setInterval() handlers. See nmsTimer() for how they are
 	 * used.
@@ -36,8 +20,6 @@ var nms = {
 	 */
 	timers: {
 		playback:false,
-		ports:false,
-		ping:false
 	},
 	menuShowing:true,
 	/*
@@ -67,8 +49,7 @@ var nms = {
 		'k':moveTimeFromKey,
 		'l':moveTimeFromKey,
 		'p':moveTimeFromKey,
-		'r':moveTimeFromKey,
-		'not-default':keyDebug
+		'r':moveTimeFromKey
 	},
   /*
    * Playback controllers and variables
@@ -117,90 +98,6 @@ function nmsTimer(handler, interval, name, description) {
 
 
 /*
- * Drawing primitives.
- *
- * This contains both canvas and context for drawing layers. It's on a
- * top-level namespace to reduce SLIGHTLY the ridiculously long names
- * (e.g.: dr.bg.ctx.drawImage() is long enough....).
- *
- * Only initialized once (for now).
- */
-var dr = {};
-
-/*
- * Original scale. This is just used to define the coordinate system.
- * 1920x1032 was chosen for tg15 by coincidence: We scaled the underlying
- * map down to "full hd" and these are the bounds we got. There's no
- * particular reason this couldn't change, except it means re-aligning all
- * switches.
- */
-var orig = {
-	width:1920,
-	height:1032
-	};
-
-/*
- * Canvas dimensions, and scale factor.
- *
- * We could derive scale factor from canvas.width / orig.width, but it's
- * used so frequently that this makes much more sense.
- *
- * Width and height are rarely used.
- */
-var canvas = { 
-	width:0,
-	height:0,
-	scale:1
-};
-
-/*
- * Various margins at the sides.
- *
- * Not really used much, except for "text", which is really more of a
- * padding than margin...
- */
-var margin = {
-	x:10,
-	y:20,
-	text:3
-};
-
-/*
- * Convenience-function to populate the 'dr' structure.
- *
- * Only run once.
- */
-function initDrawing() {
-	dr['bg'] = {};
-	dr['bg']['c'] = document.getElementById("bgCanvas");
-	dr['bg']['ctx'] = dr['bg']['c'].getContext('2d');
-	dr['link'] = {};
-	dr['link']['c'] = document.getElementById("linkCanvas");
-	dr['link']['ctx'] = dr['link']['c'].getContext('2d');
-	dr['blur'] = {};
-	dr['blur']['c'] = document.getElementById("blurCanvas");
-	dr['blur']['ctx'] = dr['blur']['c'].getContext('2d');
-	dr['switch'] = {};
-	dr['switch']['c'] = document.getElementById("switchCanvas");
-	dr['switch']['ctx'] = dr['switch']['c'].getContext('2d');
-	dr['text'] = {};
-	dr['text']['c'] = document.getElementById("textCanvas");
-	dr['text']['ctx'] = dr['text']['c'].getContext('2d');
-	dr['textInfo'] = {};
-	dr['textInfo']['c'] = document.getElementById("textInfoCanvas");
-	dr['textInfo']['ctx'] = dr['textInfo']['c'].getContext('2d');
-	dr['top'] = {};
-	dr['top']['c'] = document.getElementById("topCanvas");
-	dr['top']['ctx'] = dr['top']['c'].getContext('2d');
-	dr['input'] = {};
-	dr['input']['c'] = document.getElementById("inputCanvas");
-	dr['input']['ctx'] = dr['top']['c'].getContext('2d');
-	dr['hidden'] = {};
-	dr['hidden']['c'] = document.getElementById("hiddenCanvas");
-	dr['hidden']['ctx'] = dr['hidden']['c'].getContext('2d');
-}
-
-/*
  * Convenience function that doesn't support huge numbers, and it's easier
  * to comment than to fix. But not really, but I'm not fixing it anyway.
  */
@@ -619,12 +516,6 @@ function updateMap()
 	}
 	if (!newerSwitches())
 		return;
-	if (!nms.drawn)
-		setScale();
-	if (!nms.drawn)
-		return;
-	if (!nms.ping_data)
-		return;
 	
 	if (nms.updater != undefined && nmsData.switches && nms.switches_then) {
 		nms.updater.updater();
@@ -638,14 +529,12 @@ function updateMap()
 function setUpdater(fo)
 {
 	nms.updater = undefined;
-	resetColors();
-	resetTextInfo();
+	nmsMap.reset();
 	fo.init();
 	nms.updater = fo;
 	var foo = document.getElementById("updater_name");
 	foo.innerHTML = fo.name + "   ";
 	document.location.hash = fo.tag;
-	initialUpdate();
 	if (nms.ping_data && nms.switches_then && nmsData.switches) {
 		nms.updater.updater();
 	}
@@ -697,31 +586,6 @@ function resetSwitchStates() {
   }
 }
 
-/*
- * Convenience function to avoid waiting for pollers when data is available
- * for the first time.
- */
-function initialUpdate()
-{
-	return;
-	if (nms.ping_data && nms.switches_then && nmsData.switches && nms.updater != undefined && nms.did_update == false ) {
-		resizeEvent();
-		if (!nms.drawn) {
-			drawSwitches();
-			drawLinknets();
-		}
-		nms.updater.updater();
-		nms.did_update = true;
-	}
-}
-
-function resetBlur()
-{
-	nms.nightBlur = {};
-	dr.blur.ctx.clearRect(0,0,canvas.width,canvas.height);
-	drawSwitches();
-}
-
 function applyBlur()
 {
 	var blur = document.getElementById("shadowBlur");
@@ -732,6 +596,14 @@ function applyBlur()
 	saveSettings();
 }
 
+function toggleLayer(layer) {
+       var l = document.getElementById(layer);
+       if (l.style.display == 'none')
+               l.style.display = '';
+       else
+               l.style.display = 'none';
+}
+
 function showBlurBox()
 {
 	var blur = document.getElementById("shadowBlur");
@@ -864,54 +736,6 @@ function setLinknetColors(i,c1,c2)
 	}
 }
 
-/*
- * (Re)draw a switch 'sw'.
- *
- * Color defaults to 'blue' if it's not set in the data structure.
- */
-function drawSwitch(sw)
-{
-		var box = nmsData.switches.switches[sw]['placement'];
-		var color = nms.switch_color[sw];
-		if (color == undefined) {
-			color = blue;
-		}
-		dr.switch.ctx.fillStyle = color;
-		/*
-		 * XXX: This is a left-over from before NMS did separate
-		 * canvases, and might be done better elsewhere.
-		 */
-		if (nms.nightMode && nms.nightBlur[sw] != true) {
-			dr.blur.ctx.shadowBlur = nms.shadowBlur;
-			dr.blur.ctx.shadowColor = nms.shadowColor;
-			drawBoxBlur(box['x'],box['y'],box['width'],box['height']);
-			nms.nightBlur[sw] = true;
-		}
-		drawBox(box['x'],box['y'],box['width'],box['height']);
-		dr.switch.ctx.shadowBlur = 0;
-		if (!nms.textDrawn[sw]) {
-			if ((box['width'] + 10 )< box['height']) {
-				drawSideways(dr.text.ctx, sw,box['x'],box['y'],box['width'],box['height']);
-			} else {
-				drawRegular(dr.text.ctx,sw,box['x'],box['y'],box['width'],box['height']);
-			}
-			
-			nms.textDrawn[sw] = true;
-		}
-}
-
-/*
- * Draw all switches
- */
-function drawSwitches()
-{
-	if (!nmsData.switches || !nmsData.switches.switches)
-		return;
-	for (var sw in nmsData.switches.switches) {
-		drawSwitch(sw);
-	}
-	nms.drawn = true;
-}
 function drawSwitchInfo()
 {
 	if (!nmsData.switches || !nmsData.switches.switches)
@@ -957,44 +781,13 @@ function drawNow()
  */
 function drawScene()
 {
-	dr.text.ctx.font = Math.floor(nms.fontSize * canvas.scale) + "px " + nms.fontFace;
+	//dr.text.ctx.font = Math.floor(nms.fontSize * canvas.scale) + "px " + nms.fontFace;
 	dr.textInfo.ctx.font = Math.floor(nms.fontSize * canvas.scale) + "px " + nms.fontFace;
 	drawLinknets();
-	drawSwitches();
 	drawSwitchInfo();
 }
 
 /*
- * Set the scale factor and (re)draw the scene and background.
- * Uses canvas.scale and updates canvas.height and canvas.width.
- */
-function setScale()
-{
-	canvas.height =  orig.height * canvas.scale ;
-	canvas.width = orig.width * canvas.scale ;
-	for (var a in dr) {
-		/*
-		 * Resizing this to a too small size breaks gradients on smaller screens.
-		 */
-		if (a == 'hidden')
-			continue;
-		dr[a].c.height = canvas.height;
-		dr[a].c.width = canvas.width;
-	}
-	nms.nightBlur = {};
-	nms.textDrawn = {};
-	nms.switchInfoDrawn = {};
-	if (nms.gradients)
-		drawGradient(nms.gradients);
-	drawBG();
-	drawScene();
-	drawNow();
-	
-	document.getElementById("scaler").value = canvas.scale;
-	document.getElementById("scaler-text").innerHTML = (parseFloat(canvas.scale)).toPrecision(3);
-}
-
-/*
  * Returns true if the coordinates (x,y) is inside the box defined by
  * box.{x,y,w.h} (e.g.: placement of a switch).
  */
@@ -1012,8 +805,8 @@ function isIn(box, x, y)
  * if none is found.
  */
 function findSwitch(x,y) {
-	x = parseInt(parseInt(x) / canvas.scale);
-	y = parseInt(parseInt(y) / canvas.scale);
+	x = parseInt(parseInt(x) / nmsMap.scale);
+	y = parseInt(parseInt(y) / nmsMap.scale);
 
 	for (var v in nmsData.switches.switches) {
 		if(isIn(nmsData.switches.switches[v]['placement'],x,y)) {
@@ -1024,27 +817,6 @@ function findSwitch(x,y) {
 }
 
 /*
- * Set switch color of 'sw' to 'c', then re-draw the switch.
- */
-function setSwitchColor(sw, c)
-{
-	if(!nms.switch_color || !nms.switch_color[sw] || nms.switch_color[sw] != c) {
-		nms.switch_color[sw] = c;
-		drawSwitch(sw);
-	}
-}
-
-/*
- * Event handler for the front-end drag bar to change scale
- */
-function scaleChange()
-{
-	var scaler = document.getElementById("scaler").value;
-	canvas.scale = scaler;
-	setScale();
-}
-
-/*
  * Called when a switch is clicked
  */
 function switchClick(sw)
@@ -1056,35 +828,6 @@ function switchClick(sw)
 }
 
 /*
- * Resets the colors of linknets and switches.
- *
- * Useful when mode changes so we don't re-use colors from previous modes
- * due to lack of data or bugs.
- */
-function resetColors()
-{
-	if (!nms.sswitches_now)
-		return;
-	if (nmsData.switches.linknets) {
-		for (var i in nmsData.switches.linknets) {
-			setLinknetColors(i, blue,blue);
-		}
-	}
-	for (var sw in nmsData.switches.switches) {
-		setSwitchColor(sw, blue);
-	}
-}
-
-function resetTextInfo()
-{
-	if (!nmsData.switches)
-		return;
-	for (var sw in nmsData.switches.switches) {
-		switchInfoText(sw, undefined);
-	}
-
-}
-/*
  * onclick handler for the canvas.
  *
  * Currently just shows info for a switch.
@@ -1098,40 +841,6 @@ function canvasClick(e)
 }
 
 /*
- * Resize event-handler.
- *
- * Recomputes the scale and applies it.
- *
- * Has to use c.offset* since we are just scaling the canvas, not
- * everything else.
- *
- */
-function resizeEvent()
-{
-	var width = window.innerWidth - dr.bg.c.offsetLeft;
-	var height = window.innerHeight - dr.bg.c.offsetTop;
-	if (width / (orig.width + margin.x) > height  /  (orig.height + margin.y)) {
-		canvas.scale = height / (orig.height + margin.y);
-	} else {
-		canvas.scale = width / (orig.width + margin.x);
-	}
-	setScale();
-}
-
-/*
- * Draws the background image (scaled).
- */
-function drawBG()
-{
-	if (nms.nightMode) {
-		invertCanvas();
-	} else {
-		var image = document.getElementById('source');
-		dr.bg.ctx.drawImage(image, 0, 0, canvas.width, canvas.height);
-	}
-}
-
-/*
  * Set night mode to whatever 'toggle' is.
  * 
  * XXX: setScale() is a bit of a hack, but it really is the same stuff we
@@ -1143,50 +852,11 @@ function setNightMode(toggle) {
 	body.style.background = toggle ? "black" : "white";
 	var nav = document.getElementsByTagName("nav")[0];
 	if (toggle) {
-		dr.blur.c.style.display = '';
 		nav.classList.add('navbar-inverse');
 	} else {
-		dr.blur.c.style.display = 'none';
 		nav.classList.remove('navbar-inverse');
 	}
-	setScale();
-}
-
-function switchInfoText(sw, text)
-{
-	var box = nmsData.switches.switches.[sw]['placement'];
-	var c = canvas.scale;
-	if (nms.switchInfo[sw] == text && nms.switchInfoDrawn[sw]) {
-		return;
-	}
-	nms.switchInfo[sw] = text;
-	nms.switchInfoDrawn[sw] = true;
-	dr.textInfo.ctx.clearRect(c* box['x'], c*box['y'], c*box['width'], c*box['height']);
-	if (text != undefined && text != "") {
-		if ((box['width'] + 10 )< box['height']) {
-			drawSideways(dr.textInfo.ctx, text,box['x'],box['y'],box['width'],box['height'],"end");
-		} else {
-			drawRegular(dr.textInfo.ctx, text,box['x'],box['y'],box['width'],box['height'],"end");
-		}
-	}
-}
-
-/*
- * Draw a box (e.g.: switch).
- */
-function drawBox(x,y,boxw,boxh)
-{
-	var myX = Math.floor(x * canvas.scale);
-	var myY = Math.floor(y * canvas.scale);
-	var myX2 = Math.floor((boxw) * canvas.scale);
-	var myY2 = Math.floor((boxh) * canvas.scale);
-	dr.switch.ctx.fillRect(myX,myY, myX2, myY2);
-	dr.switch.ctx.lineWidth = Math.floor(1.0 * canvas.scale);
-	if (canvas.scale < 1.0) {
-		dr.switch.ctx.lineWidth = 1.0;
-	}
-	dr.switch.ctx.strokeStyle = "#000000";
-	dr.switch.ctx.strokeRect(myX,myY, myX2, myY2);
+	nmsMap.setNightMode(toggle);
 }
 
 /*
@@ -1200,108 +870,6 @@ function drawBoxBlur(x,y,boxw,boxh)
 	var myY2 = Math.floor((boxh) * canvas.scale);
 	dr.blur.ctx.fillRect(myX,myY, myX2, myY2);
 }
-/*
- * Draw text on a box - sideways!
- *
- * XXX: This is pretty nasty and should also probably take a box as input.
- */
-function drawSideways(ctx,text,x,y,w,h,align)
-{
-	ctx.rotate(Math.PI * 3 / 2);
-	ctx.fillStyle = "white";
-	ctx.strokeStyle = "black";
-	if (align == "end") {
-		ctx.textAlign = align;
-		y = y-h + margin.text*2;
-	} else {
-		ctx.textAlign = "start";
-	}
-	ctx.lineWidth = Math.floor(nms.fontLineFactor * canvas.scale);
-	if (ctx.lineWidth == 0) {
-		ctx.lineWidth = Math.round(nms.fontLineFactor * canvas.scale);
-	}
-	ctx.strokeText(text, - canvas.scale * (y + h - margin.text),canvas.scale * (x + w - margin.text) );
-	ctx.fillText(text, - canvas.scale * (y + h - margin.text),canvas.scale * (x + w - margin.text) );
-
-	ctx.rotate(Math.PI / 2);
-}
-
-/*
- * Draw background inverted (wooo)
- *
- * XXX: This is broken for chromium on local file system (e.g.: file:///)
- * Seems like a chromium bug?
- */
-function invertCanvas() {
-	var imageObj = document.getElementById('source');
-	dr.bg.ctx.drawImage(imageObj, 0, 0, canvas.width, canvas.height);
-
-	var imageData = dr.bg.ctx.getImageData(0, 0, canvas.width, canvas.height);
-	var data = imageData.data;
-
-	for(var i = 0; i < data.length; i += 4) {
-		data[i] = 255 - data[i];
-		data[i + 1] = 255 - data[i + 1];
-		data[i + 2] = 255 - data[i + 2];
-	}
-	dr.bg.ctx.putImageData(imageData, 0, 0);
-}
-
-/*
- * Draw regular text on a box.
- *
- * Should take the same format as drawSideways()
- *
- * XXX: Both should be renamed to have 'text' or something in them
- */
-function drawRegular(ctx,text,x,y,w,h,align) {
-
-	ctx.fillStyle = "white";
-	ctx.strokeStyle = "black";
-	ctx.lineWidth = Math.floor(nms.fontLineFactor * canvas.scale);
-	if (align == "end") {
-		ctx.textAlign = align;
-		x = x+w - margin.text*2;
-	} else {
-		ctx.textAlign = "start";
-	}
-	if (ctx.lineWidth == 0) {
-		ctx.lineWidth = Math.round(nms.fontLineFactor * canvas.scale);
-	}
-	ctx.strokeText(text, (x + margin.text) * canvas.scale, (y + h - margin.text) * canvas.scale);
-	ctx.fillText(text, (x + margin.text) * canvas.scale, (y + h - margin.text) * canvas.scale);
-}
-
-/*
- * Draw a line between switch "insw1" and "insw2", using a gradiant going
- * from color1 to color2.
- *
- * XXX: beginPath() and closePath() is needed to avoid re-using the
- * gradient/color 
- */
-function connectSwitches(insw1, insw2,color1, color2) {
-	var sw1 = nmsData.switches.switches[insw1].placement;
-	var sw2 = nmsData.switches.switches[insw2].placement;
-	if (color1 == undefined)
-		color1 = blue;
-	if (color2 == undefined)
-		color2 = blue;
-	var x0 = Math.floor((sw1.x + sw1.width/2) * canvas.scale);
-	var y0 = Math.floor((sw1.y + sw1.height/2) * canvas.scale);
-	var x1 = Math.floor((sw2.x + sw2.width/2) * canvas.scale);
-	var y1 = Math.floor((sw2.y + sw2.height/2) * canvas.scale);
-	var gradient = dr.link.ctx.createLinearGradient(x1,y1,x0,y0);
-	gradient.addColorStop(0, color1);
-	gradient.addColorStop(1, color2);
-	dr.link.ctx.beginPath();
-	dr.link.ctx.strokeStyle = gradient;
-	dr.link.ctx.moveTo(x0,y0);
-	dr.link.ctx.lineTo(x1,y1); 
-	dr.link.ctx.lineWidth = Math.floor(5 * canvas.scale);
-	dr.link.ctx.closePath();
-	dr.link.ctx.stroke();
-	dr.link.ctx.moveTo(0,0);
-}
 
 /*
  * Boot up "fully fledged" NMS.
@@ -1311,16 +879,13 @@ function connectSwitches(insw1, insw2,color1, color2) {
  * drawing, etc).
  */
 function initNMS() {
-	initDrawing();
-	window.addEventListener('resize',resizeEvent,true);
-	document.addEventListener('load',resizeEvent,true);
 	
 	nms.timers.playback = new nmsTimer(nms.playback.tick, 1000, "Playback ticker", "Handler used to advance time");
 	
 	// Public
 	
 	nmsData.registerSource("ping", "/api/public/ping");
-	nmsData.registerSource("switches","/api/public/switches", drawSwitches);
+	nmsData.registerSource("switches","/api/public/switches");
 	nmsData.registerSource("switchstate","/api/public/switch-state");
 
 	// Private	
@@ -1328,6 +893,7 @@ function initNMS() {
 	nmsData.registerSource("comments", "/api/private/comments");
 	nmsData.registerSource("smanagement","/api/private/switches-management");
 
+	nmsMap.init();
 	detectHandler();
 	nms.playback.play();
 	setupKeyhandler();
@@ -1390,45 +956,10 @@ function showTimerDebug() {
 	document.getElementById('debugTimers').style.display = 'block'; 
 }
 
-function hideLayer(layer) {
-	var l = document.getElementById(layer);
-	l.style.display = "none";
-	if (layer != "layerVisibility")
-		nms.layerVisibility[layer] = false;
-	saveSettings();
-}
-
-function showLayer(layer) {
-	var l = document.getElementById(layer);
-	l.style.display = "";
-	if (layer != "layerVisibility")
-		nms.layerVisibility[layer] = true;
-	saveSettings();
-}
-
-function toggleLayer(layer) {
-	var l = document.getElementById(layer);
-	if (l.style.display == 'none')
-		l.style.display = '';
-	else
-		l.style.display = 'none';
-}
-
-function applyLayerVis()
-{
-	for (var l in nms.layerVisibility) {
-		var layer = document.getElementById(l);
-		if (layer)
-			layer.style.display = nms.layerVisibility[l] ? '' : 'none';
-	}
-}
-
 function setMenu()
 {
 	var nav = document.getElementsByTagName("nav")[0];
 	nav.style.display = nms.menuShowing ? '' : 'none';
-	resizeEvent();
-
 }
 function toggleMenu()
 {
@@ -1491,13 +1022,6 @@ function moveTimeFromKey(e,key)
 	return true;
 }
 
-var debugEvent;
-function keyDebug(e)
-{
-	console.log(e);
-	debugEvent = e;
-}
-
 function keyPressed(e)
 {
 	if (e.target.nodeName == "INPUT") {
@@ -1551,10 +1075,8 @@ function restoreSettings()
 	for (var v in retrieve) {
 		nms[v] = retrieve[v];
 	}
-	setScale();
 	setMenu();
 	setNightMode(nms.nightMode);
-	applyLayerVis();
 }
 
 function forgetSettings()