diff --git a/static/focus.js b/static/focus.js
index 4b43735..3eaf194 100644
--- a/static/focus.js
+++ b/static/focus.js
@@ -5,37 +5,30 @@ const API = {
     buhForms: "/api3/buh",
 };
 
-function run() {
-    sendRequest(API.organizationList, (orgOgrns) => {
-        const ogrns = orgOgrns.join(",");
-        sendRequest(`${API.orgReqs}?ogrn=${ogrns}`, (requisites) => {
-            const orgsMap = reqsToMap(requisites);
-            sendRequest(`${API.analytics}?ogrn=${ogrns}`, (analytics) => {
-                addInOrgsMap(orgsMap, analytics, "analytics");
-                sendRequest(`${API.buhForms}?ogrn=${ogrns}`, (buh) => {
-                    addInOrgsMap(orgsMap, buh, "buhForms");
-                    render(orgsMap, orgOgrns);
-                });
-            });
-        });
-    });
+async function run() {
+    const orgOgrns = await sendRequest(API.organizationList);
+    const ogrns = orgOgrns.join(",");
+    const [orgReqs, analytics, buhForms] = await Promise.all([
+        sendRequest(`${API.orgReqs}?ogrn=${ogrns}`),
+        sendRequest(`${API.analytics}?ogrn=${ogrns}`),
+        sendRequest(`${API.buhForms}?ogrn=${ogrns}`),
+    ]);
+    const orgsMap = reqsToMap(orgReqs);
+    addInOrgsMap(orgsMap, analytics, "analytics");
+    addInOrgsMap(orgsMap, buhForms, "buhForms");
+    render(orgsMap, orgOgrns);
 }
 
 run();
 
-function sendRequest(url, callback) {
-    const xhr = new XMLHttpRequest();
-    xhr.open("GET", url, true);
-
-    xhr.onreadystatechange = function () {
-        if (xhr.readyState === XMLHttpRequest.DONE) {
-            if (xhr.status === 200) {
-                callback(JSON.parse(xhr.response));
-            }
-        }
-    };
-
-    xhr.send();
+async function sendRequest(url) {
+    const response = await fetch(url, { method: "GET" });
+    if (response.ok) {
+        return response.json();
+    }
+    const error = `${response.status} ${response.statusText}`;
+    alert(error);
+    return Promise.reject(error);
 }
 
 function reqsToMap(requisites) {