try to draw 1000*1000 svg grig

src/arenas/tron/js.js

@@ -13,10 +13,7 @@ function tron(bot1,bot2,xdcheck){
             document.getElementById('fightResult').removeChild(document.getElementById('fightResult').firstChild);
         } 
         
-        var mapImg = createElem('svg',{'alt' : 'map'});
-	
-       
-alert("plop");
+        var mapImg = createElem('svg',{'alt' : 'map','width':'200','height':'200'});
 	// "circle" may be any tag name
 	var shape = document.createElementNS("http://www.w3.org/2000/svg", "circle");
 	// Set any attributes as desired