1diff --git a/index.html b/index.html
  2index 3c9e61b..275edfe 100644
  3--- a/index.html
  4+++ b/index.html
  5@@ -29,7 +29,7 @@
  6           <button class="run button-primary" id="standard">GENERATE</button>
  7         </p>
  8       </div>
  9-      <div class="set-of" id="container-1"></div>
 10+      <div class="set-of" id="container-standard"></div>
 11       <hr>
 12     </div>
 13     <!-- container-2 -->
 14@@ -48,7 +48,7 @@
 15           <button class="run button-primary" id="combined">GENERATE</button>
 16         </p>
 17       </div>
 18-      <div class="set-of" id="container-2"></div>
 19+      <div class="set-of" id="container-combined"></div>
 20       <hr>
 21     </div>
 22     <!-- container-3 -->
 23@@ -60,7 +60,7 @@
 24           <button class="run button-primary" id="grd">GENERATE</button>
 25         </p>
 26       </div>
 27-      <div class="set-of" id="container-3"></div>
 28+      <div class="set-of" id="container-grd"></div>
 29       <hr>
 30     </div>
 31     <!-- container-4 -->
 32@@ -73,7 +73,7 @@
 33           <button class="run button-primary" id="simpleErosion">GENERATE</button>
 34         </p>
 35       </div>
 36-      <div class="set-of" id="container-4"></div>
 37+      <div class="set-of" id="container-simpleErosion"></div>
 38       <hr>
 39     </div>
 40     <!-- container-5 -->
 41@@ -85,7 +85,7 @@
 42           <button class="run button-primary" id="complexErosion">GENERATE</button>
 43         </p>
 44       </div>
 45-      <div class="set-of" id="container-5"></div>
 46+      <div class="set-of" id="container-complexErosion"></div>
 47       <hr>
 48     </div>
 49     <!-- hidden canvas for rendering-->
 50diff --git a/main.js b/main.js
 51index ccd8e92..38a770b 100644
 52--- a/main.js
 53+++ b/main.js
 54@@ -1,56 +1,14 @@
 55 var worker;
 56 $(document).ready(function() {
 57-
 58   function spinner(id) {
 59     var spinner = '<img class="spinner" width="24" height="24" src="data:image/gif;base64,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" />';
 60     this.document.getElementById(id).innerHTML = spinner;
 61   }
 62 
 63-  $("#standard").click(function() {
 64-    spinner("container-1");
 65-    var worker = new Worker('worker.js');
 66-    worker.postMessage("standard");
 67-    worker.addEventListener('message', function(e) {
 68-      var terrain = new LandMap(e.data);
 69-      terrain.draw();
 70-    }, false);
 71-  });
 72-
 73-  $("#combined").click(function() {
 74-    spinner("container-2");
 75-    var worker = new Worker('worker.js');
 76-    worker.postMessage("combined");
 77-    worker.addEventListener('message', function(e) {
 78-      var terrain = new LandMap(e.data);
 79-      terrain.draw();
 80-    }, false);
 81-  });
 82-
 83-  $("#grd").click(function() {
 84-    spinner("container-3");
 85-    var worker = new Worker('worker.js');
 86-    worker.postMessage("grd");
 87-    worker.addEventListener('message', function(e) {
 88-      var terrain = new LandMap(e.data);
 89-      terrain.draw();
 90-    }, false);
 91-  });
 92-
 93-
 94-  $("#simpleErosion").click(function() {
 95-    spinner("container-4");
 96-    var worker = new Worker('worker.js');
 97-    worker.postMessage("simpleErosion");
 98-    worker.addEventListener('message', function(e) {
 99-      var terrain = new LandMap(e.data);
100-      terrain.draw();
101-    }, false);
102-  });
103-
104-  $("#complexErosion").click(function() {
105-    spinner("container-5");
106+  $("button").click(function(event) {
107+    spinner("container-" + event.target.id);
108     var worker = new Worker('worker.js');
109-    worker.postMessage("complexErosion");
110+    worker.postMessage(event.target.id);
111     worker.addEventListener('message', function(e) {
112       var terrain = new LandMap(e.data);
113       terrain.draw();
114diff --git a/worker.js b/worker.js
115index 03a6a1b..324d85a 100644
116--- a/worker.js
117+++ b/worker.js
118@@ -5,7 +5,7 @@ self.addEventListener('message', function(e) {
119   switch (data) {
120     case 'complexErosion':
121       terrain = new LandMap({
122-        containerId: "container-5"
123+        containerId: "container-complexErosion"
124       });
125       terrain.generate(0.75, "standard");
126       terrain.complexErosion({
127@@ -19,7 +19,7 @@ self.addEventListener('message', function(e) {
128       break;
129     case 'simpleErosion':
130       terrain = new LandMap({
131-        containerId: "container-4"
132+        containerId: "container-simpleErosion"
133       });
134       terrain.generate(0.75, "standard");
135       terrain.simpleErosion({
136@@ -33,7 +33,7 @@ self.addEventListener('message', function(e) {
137       break;
138     case 'grd':
139       terrain = new LandMap({
140-        containerId: "container-3"
141+        containerId: "container-grd"
142       });
143       terrain.generate(0.75, "standard");
144       terrain.grd(22, 0.01, "standard", "grd-22-0.01");
145@@ -42,7 +42,7 @@ self.addEventListener('message', function(e) {
146       break;
147     case 'combined':
148       terrain = new LandMap({
149-        containerId: "container-2"
150+        containerId: "container-combined"
151       });
152       terrain.generate(0.75, "standard");
153       terrain.generate(0.75, "standard-two", "DS with 0.75");
154@@ -53,13 +53,12 @@ self.addEventListener('message', function(e) {
155       break;
156     case 'standard':
157       terrain = new LandMap({
158-        containerId: "container-1"
159+        containerId: "container-standard"
160       });
161       terrain.generate(0.75, "standard");
162       terrain.smooth(10, "standard", "smoothed-10");
163       terrain.smooth(20, "standard", "smoothed-20");
164       break;
165   };
166-  console.log(terrain)
167   self.postMessage(terrain);
168 }, false);