make hidden ssid work minimally

html/wifi/wifi.html

@@ -29,8 +29,8 @@
             <label>Network SSID</label>
             <div id="aps">Scanning... <div class="spinner spinner-small"></div></div>
             <label for="opt-hiddenssid">
-              <input type="radio" name="essid" value="" id="opt-hiddenssid">
-              <input type="text" value="">
+              <input type="radio" name="essid" value="_hidden_ssid_" id="opt-hiddenssid">
+              <input type="text" id="hidden-ssid" value="" style="width:auto; display:inline-block;">
             </label>
             <label>WiFi password, if applicable:</label>
             <input id="wifi-passwd" type="password" name="passwd" placeholder="password">

html/wifi/wifi.js

@@ -41,7 +41,11 @@ function createInputForAp(ap) {
 function getSelectedEssid() {
   var e = document.forms.wifiform.elements;
   for (var i=0; i<e.length; i++) {
-    if (e[i].type == "radio" && e[i].checked) return e[i].value;
+    if (e[i].type == "radio" && e[i].checked) {
+      var v = e[i].value;
+      if (v == "_hidden_ssid_") v = $("#hidden-ssid").value;
+      return v;
+    }
   }
   return currAp;
 }