diff --git a/src/arenas/tron/js.js b/src/arenas/tron/js.js
index f2bc05f..a9c0220 100644
--- a/src/arenas/tron/js.js
+++ b/src/arenas/tron/js.js
@@ -7,17 +7,16 @@ function createElem(type,attributes){
 function createElemNs(type,attributes){
     var elem=document.createElementNS("http://www.w3.org/2000/svg",type);
     for (var i in attributes)
-    {elem.setAttribute(i,attributes[i]);}
+    {elem.setAttributeNs(null,i,attributes[i]);}
     return elem;
 }
 
 
 function tron(bot1,bot2,xdcheck){
 	
-        var svg = document.getElementById("map");
-	var svgDoc = svg.contentDocument;
+	//var svgDoc = svg.contentDocument;
 	var rect=createElemNs('rect',{'x':'10','y':'10','width':'50','height':'80','style':'stroke:#000000; fill:none;'});
 	
-	svgDoc.appendChild(rect);
+	document.getElementById("map").appendChild(rect);
   
 }