判断手机提示语

@@ -261,7 +261,7 @@
                                 <input value="{{invoice_mobile}}" class='input invoice-mobile' type="text" maxlength="11"  placeholder="请填写收票人手机">
                                 <span class="input-tip invoice-mobile-tip blue hide">
                                     <span class="iconfont">&#xe60c;</span>
-                                    请输入正确的手机号
+                                    <em>手机号码不正确</em>
                                 </span>
                             </div>
                         </div>

@@ -22,16 +22,23 @@ function validateInvoice($el) {
     var name = $.trim($el.find('.invoice-title-input').val());
     var mobile = $.trim($invoiceMobile.val());
 
+    //隐藏所有错误提示
+    $el.find('.input-tip').addClass('hide');
+
     // 发票抬头为单位
     if ($el.invoiceTitleType === 2 && name === '') {
         pass = false;
         $el.find('.invoice-title-tip').removeClass('hide');
     }
 
-    if ($el.invoiceType === 2 && $('#address-list li.address.focus').data('mobile') !== mobile) {
-        if (!/[1][34578][0-9]{9}/.test(mobile)) {
+    if ($el.invoiceType === 2 && (mobile === '' ||
+        $('#address-list li.address.focus').data('mobile') !== mobile)) {
+        if (mobile === '') {
+            pass = false;
+            $el.find('.invoice-mobile-tip').removeClass('hide').find('em').html('请填写手机号码');
+        } else if (!/[1][34578][0-9]{9}/.test(mobile)) {
             pass = false;
-            $el.find('.invoice-mobile-tip').removeClass('hide');
+            $el.find('.invoice-mobile-tip').removeClass('hide').find('em').html('手机号码不正确');
         }
     }
 
@@ -152,7 +159,9 @@ function showInvoiceDialog() {
     }
 
     // 设置默认收货地址手机号
-    $invoiceMobile.val(mobile.toString().substr(0, 3) + '****' + mobile.toString().substr(7));
+    if (mobile) {
+        $invoiceMobile.val(mobile.toString().substr(0, 3) + '****' + mobile.toString().substr(7));
+    }
 
     // 设置radio选中
     $('[data-value=' + invoiceTitleType + '].invoice-title-radio').find('.radio').addClass('checked');