Add prepaid return label checkbox to package pickup form

www/assets/js/pickup.js

@@ -32,7 +32,8 @@ function requestPickup() {
         accountkey: getStorage("accountkey"),
         count: $("#pickupRequestForm #packagecount").val(),
         address: $("#pickupRequestForm #streetaddress").val() + " " + $("#pickupRequestForm #zipcode").val(),
-        instructions: instructions
+        instructions: instructions,
+        prepaid: $("#prepaid-label-checkbox").is(":checked") ? "1" : "0"
     }, function (success) {
         app.dialog.close();
         if (success.status == "OK") {

www/pages/pickup.html

@@ -102,6 +102,17 @@
                                         </div>
                                     </div>
                                 </li>
+                                <li>
+                                    <label class="item-checkbox item-content text-align-left">
+                                        <!-- Checkbox input -->
+                                        <input type="checkbox" id="prepaid-label-checkbox" />
+                                        <!-- Checkbox icon -->
+                                        <i class="icon icon-checkbox"></i>
+                                        <span class="item-inner">
+                                            <span class="item-title">Package has a prepaid return label</span>
+                                        </span>
+                                    </label>
+                                </li>
                                 <li class="padding">
                                     By requesting a pickup, you confirm that you aren't sending any <a onclick="openBrowser('https://helena.express/articles/restricted-items')">restricted items</a>.
                                     You agree that we can bill your saved payment method for the shipping cost.