try to draw 1000*1000 svg grig

src/arenas/tron/js.js

@@ -8,7 +8,7 @@ function createElem(type,attributes){
 
 
 function tron(bot1,bot2,xdcheck){
-        var mapImg = createElem('svg',{'alt' : 'map','width':'200','height':'200','xmlns':'http://www.w3.org/2000/svg','viewBox':'0 0 20 20'});
+        var mapImg = createElem('svg',{'version':'1.1','alt' : 'map','width':'200','height':'200','xmlns':'http://www.w3.org/2000/svg','viewBox':'0 0 20 20'});
 	// "circle" may be any tag name
 	mapImg.innerHTML = '    <rect id="rect1" x="10" y="10" width="50" height="80" style="stroke:#000000; fill:none;"/>';
 	document.getElementById('mainArticle').appendChild(mapImg);

src/arenas/tron/public.php

@@ -34,5 +34,7 @@ $bots=get_Bots_Array('tron');
 		</p>
 		<p><input type="checkbox" id="fullLogs"/><label for="fullLogs">view the full logs</label></p>
 	<p><input id="fightButton" type="button" value="<?php echo $lang['FIGHT']; ?>" onclick="tron(document.getElementById('bot1').value,document.getElementById('bot2').value,'<?php echo xd_check_input(2); ?>',0);"></p>
-
+<svg width="100" height="100">
+  <circle cx="50" cy="50" r="40" stroke="green" stroke-width="4" fill="yellow" />
+</svg>
 </article>