Don't show information if the quest is locked

public/js/controllers/inventoryCtrl.js

@@ -139,6 +139,11 @@ habitrpg.controller("InventoryCtrl", ['$rootScope', '$scope', '$window', 'User',
     }
     $scope.buyQuest = function(quest) {
       var item = Content.quests[quest];
+      var completedPrevious = !item.previous || (User.user.achievements.quests && User.user.achievements.quests[item.previous]);
+      if (!completedPrevious)
+        return alert("You must first complete " + $rootScope.Content.quests[item.previous].text + '.');
+      if (item.lvl && item.lvl > user.stats.lvl)
+        return alert("You must be level " + item.lvl + '.');
       $rootScope.selectedQuest = item;
       $rootScope.modals.buyQuest = true;
     }

views/options/inventory/inventory.jade

@@ -125,10 +125,10 @@ script(type='text/ng-template', id='partials/options.inventory.drops.html')
             menu.pets-menu(label=env.t('quests'))
               p.muted!=env.t('scrollsText1') + ' <a href="/#/options/groups/party">' + env.t('scrollsText2') + '</a>'
               div(ng-repeat='quest in Content.quests')
-                  button.customize-option(popover='{{quest.notes}}', popover-title='{{quest.text}}', popover-trigger='mouseenter', popover-placement='left', ng-click='buyQuest(quest.key)', class='inventory_quest_scroll', ng-class='{locked: quest.previous && !user.achievements.quests[quest.previous]}')
-                  p
-                    |  {{quest.value}}
-                    span.Pet_Currency_Gem1x.inline-gems
+                button.customize-option(popover='{{quest.text}}', popover-trigger='mouseenter', popover-placement='left', ng-click='buyQuest(quest.key)', class='inventory_quest_scroll', ng-class='{locked: quest.previous && !user.achievements.quests[quest.previous]}')
+                p
+                  |  {{quest.value}}
+                  span.Pet_Currency_Gem1x.inline-gems
 
           li.customize-menu
             menu.pets-menu(label=env.t('special'))