Add /topic function

index.js

@@ -114,6 +114,10 @@ $("#send-message").keypress(function(e) {
         nick = message.split(" ")[1];
         message = message.substring(6+nick.length, message.length);
         sendPm(message, nick);
+      } else if (message.indexOf("/topic") == 0) {
+        var channel = $(".tab.active").attr("data-tab").replace("chan-", "#")
+        topic = message.substring(7, message.length);
+        setTopic(channel, topic);
       } else if (message.indexOf("/") == 0) {
         command = message.split(" ")[0].replace("/","");
         commandArgs = message.replace(command + " ", "");
@@ -159,6 +163,10 @@ function sendPm(message, nick) {
   chatTab.scrollTop(chanTab.prop("scrollHeight"));
 }
 
+function setTopic(channel, topic) {
+  client.send("TOPIC", channel, topic);
+}
+
 function joinChannel(channel, sendJoin) {
   if (sendJoin) {
     client.join(channel);