diff --git a/www/res/js/locutus.js b/www/res/js/locutus.js
index 8e0cb01..66bd938 100644
--- a/www/res/js/locutus.js
+++ b/www/res/js/locutus.js
@@ -3,6 +3,10 @@
 let main, windows;
 let defaultLocation = '/welcome';
 
+let token = "";
+let domain = "";
+let dest = "";
+
 function createWelcomeWindow() {
     let win = document.createElement("div");
     win.id = "welcome-win";
@@ -15,6 +19,43 @@ function createWelcomeWindow() {
     windows.appendChild(win);
 }
 
+function createChatWindow() {
+    let win = document.createElement("div");
+    win.id = "chat-win";
+
+    win.innerHTML = `
+        <div id="message-win">
+            <p>Test Message</p>
+        </div>
+        <input id="sendMessage" name="message" placeholder="Very important message..." type="text">
+    `;
+
+    win.getElementById("sendMessage").addEventListener("keyup", (evt) => {
+        if (evt.keyCode === 13) {
+            evt.preventDefault();
+            //TODO: Send Message
+        }
+    });
+
+
+    main.appendChild(win);
+}
+
+async function sendEvent(message) {
+    let res = await fetch(dest, {
+        method: 'POST',
+        headers: {
+            'Content-Type': 'application/json',
+            'Authorization': `usimp ${token}`,
+        },
+        body: message
+    });
+
+    let result = await res;
+    alert(result.message);
+}
+
+
 function createLoginWindow() {
     let win = document.createElement("div");
     win.id = "login-win";
@@ -52,6 +93,15 @@ function createLoginWindow() {
                             console.log(data["domain"]);
                             let domainServer = usimp.chooseDomainServer(data["domain_servers"]);
                             console.log(domainServer);
+                            dest = "http://" + domainServer.host + ':' + domainServer.protocols.http + "/"
+
+                            usimp.login(domainServer, data["domain"].id, form.elements["account"].value, form.elements["password"].value)
+                                .then(res => res.json())
+                                .then(data => {
+                                    token = data.token;
+                                    console.log(data.token);
+                                })
+
                         })
                         .catch(reason => {
                             console.error(reason);
diff --git a/www/res/js/usimp.js b/www/res/js/usimp.js
index 5beb350..e7b5a15 100644
--- a/www/res/js/usimp.js
+++ b/www/res/js/usimp.js
@@ -32,6 +32,18 @@ usimp.chooseDomainServer = function (domainServers, invalidDomainServers = []) {
     return domainServers[0];
 }
 
-usimp.login = function (domainServer, accountName, password) {
-    return fetch(``)
+usimp.login = function (domainServer, domain, account, password) {
+    return fetch('http://' + domainServer.host + ':' + domainServer.protocols.http + '/_usimp/authenticate', {
+        method: 'POST',
+        headers: {
+            'Content-Type': 'application/json',
+            'To-Domain': domain,
+            'From-Domain': domain
+        },
+        body: JSON.stringify({
+            type: "password",
+            name: account,
+            password: password,
+        }),
+    });
 }