--- miscJava/Test3/WebContent/WebsockTest.html	2014/02/11 12:44:13	2113
+++ miscJava/Test3/src/main/webapp/WebsockTest.html	2015/03/20 08:12:57	2446
@@ -22,7 +22,10 @@
 function sendMessage() {
 	try {
 		var txt = $("#txt").val();
+		txt = $.trim(txt);
 		//append(txt);
+		if (txt == "")
+			return;
 		
 		socket.send( "CHAT#" + txt);
 		
@@ -54,6 +57,10 @@
 		    setActTime();
 		}
 	
+		socket.onerror = function(evt) {
+			append("*** Error om client websocket ***");
+		}
+	
 		socket.onclose = function(){
 			var now = new Date().getTime();
 			var elapsed = now - actTime;
@@ -73,6 +80,11 @@
 		var nick = $("#nick").val();
 		nick = $.trim(nick);
 		
+		if (nick == "") {
+			alert("Nick can not be empty");
+			return;
+		}
+		
 		try {
 			socket.send( "NICK#" + nick);			
 		} catch(exception) {
@@ -87,6 +99,10 @@
 		}
 	});
 	
+	$(window).unload(function(){
+		socket.close();
+	});
+	
 });