diff --git a/static/focus.js b/static/focus.js
index 4b43735..62d6dd5 100644
--- a/static/focus.js
+++ b/static/focus.js
@@ -5,37 +5,41 @@ const API = {
     buhForms: "/api3/buh",
 };
 
-function run() {
-    sendRequest(API.organizationList, (orgOgrns) => {
+async function run() {
+    try {
+        const orgOgrns = await sendRequest(API.organizationList);
         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);
-                });
-            });
-        });
-    });
+
+        const [requisites, analytics, buh] =
+            await Promise.all([
+                sendRequest(`${API.orgReqs}?ogrn=${ogrns}`),
+                sendRequest(`${API.analytics}?ogrn=${ogrns}`),
+                sendRequest(`${API.buhForms}?ogrn=${ogrns}`),
+            ]);
+
+        const orgsMap = reqsToMap(requisites);
+        addInOrgsMap(orgsMap, analytics, "analytics");
+        addInOrgsMap(orgsMap, buh, "buhForms");
+        render(orgsMap, orgOgrns);
+    } catch (error) {
+        console.error("Error:", error);
+    }
 }
 
 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));
+function sendRequest(url) {
+    return fetch(url)
+        .then(response => {
+            if (response.status === 200) {
+                return Promise.resolve(response.json());
+            } else if (response.status >= 300) {
+                alert(`${response.status} ${response.statusText}`);
+                return Promise.reject("error error");
+            } else {
+                return Promise.reject(response.status);
             }
-        }
-    };
-
-    xhr.send();
+        });
 }
 
 function reqsToMap(requisites) {