try to draw 1000*1000 svg grig

src/arenas/tron/js.js

@@ -1,48 +1,4 @@
-document.createSvg = function(tagName) {
-    var svgNS = "http://www.w3.org/2000/svg";
-    return this.createElementNS(svgNS, tagName);
-};
 
-var grid = function(numberPerSide, size, pixelsPerSide, colors) {
-    var svg = document.createSvg("svg");
-    svg.setAttribute("width", pixelsPerSide);
-    svg.setAttribute("height", pixelsPerSide);
-    svg.setAttribute("viewBox", [0, 0, numberPerSide * size, numberPerSide * size].join(" "));
-
-    for(var i = 0; i < numberPerSide; i++) {
-        for(var j = 0; j < numberPerSide; j++) {
-          var color1 = colors[(i+j) % colors.length];
-          var color2 = colors[(i+j+1) % colors.length];  
-          var g = document.createSvg("g");
-          g.setAttribute("transform", ["translate(", i*size, ",", j*size, ")"].join(""));
-          var number = numberPerSide * i + j;
-          var box = document.createSvg("rect");
-          box.setAttribute("width", size);
-          box.setAttribute("height", size);
-          box.setAttribute("fill", color1);
-          box.setAttribute("id", "b" + number); 
-          g.appendChild(box);
-          var text = document.createSvg("text");
-          text.appendChild(document.createTextNode(i * numberPerSide + j));
-          text.setAttribute("fill", color2);
-          text.setAttribute("font-size", 6);
-          text.setAttribute("x", 0);
-          text.setAttribute("y", size/2);
-          text.setAttribute("id", "t" + number);
-          g.appendChild(text);
-          svg.appendChild(g);
-        }  
-    }
-    svg.addEventListener(
-        "click",
-        function(e){
-            var id = e.target.id;
-            if(id)
-                alert(id.substring(1));
-        },
-        false);
-    return svg;
-};