diff --git a/src/arenas/tron/js.js b/src/arenas/tron/js.js
index 0b2b066..22199f3 100644
--- a/src/arenas/tron/js.js
+++ b/src/arenas/tron/js.js
@@ -12,9 +12,9 @@ function createElemNS(type,attributes){
     return elem;
 }
 
-function applyInitMessage(request){
-  if(request.readyState  == 4){ 
-    if(request.status  == 200) {
+function applyInitMessage(req){
+  if(req.readyState  == 4){ 
+    if(req.status  == 200) {
       alert ("ok");
 
     }else{
@@ -37,8 +37,8 @@ function tron(bot1,bot2,xd_check){
 	document.getElementById("fightResult").appendChild(svg);
 		
 	//ask arena to send bots init messages
-	var request = new XMLHttpRequest(request);	 
-	request.onreadystatechange  = applyInitMessage;
+	var request = new XMLHttpRequest();	 
+	request.onreadystatechange  = applyInitMessage(request);
 	request.open("POST", '/tron',  true);
 	request.setRequestHeader("Content-Type", "application/x-www-form-urlencoded");
 	request.send('act=initGame&bot1=' + bot1 + '&bot2=' + bot2 + '&xd_check=' + xd_check + '&fullLogs=' + document.getElementById("fullLogs").checked);