diff --git a/app/includes/header-node-modal.tpl b/app/includes/header-node-modal.tpl
index 45b361747b..54e6938185 100644
--- a/app/includes/header-node-modal.tpl
+++ b/app/includes/header-node-modal.tpl
@@ -48,11 +48,11 @@
           </div>
 
           <div class="clearfix col-xs-12 radio">
-            <label><input name="options" type="radio" ng-model="customNode.options" value="eth"> ETH </label>
-            <label><input name="options" type="radio" ng-model="customNode.options" value="etc"> ETC </label>
-            <label><input name="options" type="radio" ng-model="customNode.options" value="rop"> Ropsten </label>
-            <label><input name="options" type="radio" ng-model="customNode.options" value="kov"> Kovan </label>
-            <label><input name="options" type="radio" ng-model="customNode.options" value="rin"> Rinkeby </label>
+            <label><input name="options" type="radio" ng-disabled="!nodeList.eth_ethscan" ng-model="customNode.options" value="eth"> ETH </label>
+            <label><input name="options" type="radio" ng-disabled="!nodeList.etc_epool" ng-model="customNode.options" value="etc"> ETC </label>
+            <label><input name="options" type="radio" ng-disabled="!nodeList.rop_mew" ng-model="customNode.options" value="rop"> Ropsten </label>
+            <label><input name="options" type="radio" ng-disabled="!nodeList.kov_ethscan" ng-model="customNode.options" value="kov"> Kovan </label>
+            <label><input name="options" type="radio" ng-disabled="!nodeList.rin_ethscan" ng-model="customNode.options" value="rin"> Rinkeby </label>
             <label><input name="options" type="radio" ng-model="customNode.options" value="cus"> Custom </label>
             <label ng-show="customNode.options == 'cus'"><input type="checkbox" ng-model="customNode.eip155" value="true"> Supports EIP-155 </label>
           </div>
diff --git a/app/scripts/main.js b/app/scripts/main.js
index fdc3e5054a..5355b474fd 100644
--- a/app/scripts/main.js
+++ b/app/scripts/main.js
@@ -131,6 +131,22 @@ if (IS_CX) {
   var mainPopCtrl = require("./controllers/CX/mainPopCtrl");
   var quickSendCtrl = require("./controllers/CX/quickSendCtrl");
 }
+
+// prepare some variables
+var nodeList = {};
+if (typeof selectedNetworks !== 'undefined') {
+  var found = 0;
+  selectedNetworks.forEach(function(n) {
+    if (nodes.nodeList[n]) {
+      nodeList[n] = nodes.nodeList[n];
+      found++;
+    }
+  });
+  if (found > 0) {
+    nodes.nodeList = nodeList;
+  }
+}
+
 var app = angular.module("mewApp", [
   "pascalprecht.translate",
   "ngSanitize",
diff --git a/gulpfile.js b/gulpfile.js
index d4d2fb932f..56bfe1884e 100644
--- a/gulpfile.js
+++ b/gulpfile.js
@@ -30,6 +30,13 @@ const dist_CX = "./chrome-extension/";
 // default Settings
 const Settings = require('./config.default.json');
 
+// get selected nodeList to override the nodes.nodeList
+let selectedNetworks, i = process.argv.indexOf("--networks");
+if (i > -1 && process.argv[i + 1]) {
+    selectedNetworks = process.argv[i + 1].split(",");
+    console.log("Selected networks =", selectedNetworks);
+}
+
 // load custom settings
 try {
   let local = require('./config.json');
@@ -123,12 +130,22 @@ let js_srcFile = app + "scripts/main.js";
 let js_destFolder = dist + "js/";
 let js_destFolder_CX = dist_CX + "js/";
 let js_destFile = "etherwallet-master.js";
-let browseOpts = { debug: true }; // generates inline source maps - only in js-debug
+let js_opts = {}; // browserify opts
 let babelOpts = {
   presets: ["env"],
   compact: false
 };
 
+// have selected nodes ?
+if (selectedNetworks) {
+  // setup browserify opts
+  js_opts.insertGlobalVars = {
+    selectedNetworks: function() {
+      return JSON.stringify(selectedNetworks);
+    }
+  };
+}
+
 function bundle_js(bundler) {
   return bundler
     .bundle()
@@ -154,21 +171,22 @@ function bundle_js_debug(bundler) {
 }
 
 gulp.task("js", function() {
-  let bundler = browserify(js_srcFile)
+  let bundler = browserify(js_srcFilei, js_opts)
     .transform(babelify)
     .transform(html2js);
   bundle_js(bundler);
 });
 
 gulp.task("js-production", function() {
-  let bundler = browserify(js_srcFile)
+  let bundler = browserify(js_srcFile, js_opts)
     .transform(babelify, babelOpts)
     .transform(html2js);
   bundle_js(bundler);
 });
 
 gulp.task("js-debug", function() {
-  let bundler = browserify(js_srcFile, browseOpts)
+  js_opts.debug = true; // generates inline source maps - only in js-debug
+  let bundler = browserify(js_srcFile, js_opts)
     .transform(babelify, babelOpts)
     .transform(html2js);
   bundle_js_debug(bundler);