try to draw 1000*1000 svg grig

src/arenas/tron/js.js

@@ -7,8 +7,17 @@ function tron(bot1,bot2,xdcheck){
         while (document.getElementById('fightResult').firstChild) {
             document.getElementById('fightResult').removeChild(document.getElementById('fightResult').firstChild);
         } 
-         document.getElementById('fightResult').appendChild(grid(1000,10,40,["red", "white"]));
+       
 
-	
+	// "circle" may be any tag name
+	var shape = document.createElementNS("http://www.w3.org/2000/svg", "circle");
+	// Set any attributes as desired
+	shape.setAttribute("cx", 25);
+	shape.setAttribute("cy", 25);
+	shape.setAttribute("r",  20);
+	shape.setAttribute("fill", "green");
+	// Add to a parent node; document.documentElement should be the root svg element.
+	// Acquiring a parent element with document.getElementById() would be safest.
+	document.getElementById('fightResult').appendChild(shape);
   
 }