清空地址后退回结算界面，发现还保留了最后的地址 fix

@@ -7,9 +7,20 @@
 var $ = require('jquery'),
     orderInfo = require('./order-info').orderInfo;
 
+var $confim = $('.confim-mask'),
+    deleteId;
+
 $('.address-item').on('touchend', function() {
     orderInfo('addressId', $(this).data('address-id'));
 }).on('touchend', '.edit', function() {
     window.location.href = $(this).data('href');
     return false;
+}).on('touchend', '.del', function() {
+    deleteId = $(this).data('address-id');
+});
+
+$confim.on('touchend', '.confim', function() {
+    if (orderInfo('addressId') === deleteId) {
+        orderInfo('addressId', null);
+    }
 });