Misc updates

sqrl/static/sqrl/sqrl.js

@@ -1,5 +1,16 @@
 (function() {
   var get_next_url   = function() {
+          // A Next defined in the URL has priority
+          var urlparam = document.URL.match(/next=([^&#]+)/)
+          if (urlparam.length == 2) {
+            return urlparam[1]
+          }
+          // Next highest priority is a defined SQRL_NEXT
+          if (typeof SQRL_NEXT !== "undefined") {
+            return SQRL_NEXT
+          }
+          // Lowest priority is the first input element
+          // named "next", otherwise return null
           var input = document.querySelectorAll('input[name="next"]');
           return input.length > 0 ? input[0].value : null;
       },