mag calibration button fix

main.css

@@ -1272,7 +1272,7 @@ dialog {
     background-color: #fff;
     border-radius: 4px;
     border: 1px solid #37a8db;
-    color: #37a8db !important;
+    color: #37a8db;
     font-family: 'open_sanssemibold', Arial;
     font-size: 12px;
     line-height: 13px;
@@ -1281,6 +1281,12 @@ dialog {
     text-decoration:none;
 }
 
+.default_btn a.disabled {
+     background-color: #fff;
+     border: 1px solid #ccc;
+     color: #ccc;
+}
+ 
 .default_btn a:hover {
     background-color: #37a8db;
     color: #fff !important;

tabs/setup.js

@@ -54,6 +54,7 @@ TABS.setup.initialize = function (callback) {
         // check if we have magnetometer
         if (!bit_check(CONFIG.activeSensors, 2)) {
             $('a.calibrateMag').addClass('disabled');
+            $('default_btn').addClass('disabled');
         }
 
         self.initializeInstruments();