March 25, 2014 19:43
diff --git a/jsbin.cowijeda.html b/jsbin.cowijeda.html
 <!DOCTYPE html>
 <html>
 <head>
  <meta charset="utf-8">
  <title>JS Bin</title>
 </head>
 <body>

 </body>
 </html>
diff --git a/jsbin.cowijeda.js b/jsbin.cowijeda.js
 var keyMap = [];
 onkeydown = onkeyup = function(e) {
  e = e || event;
  keyMap[e.keyCode] = e.type == 'keydown';
  if ((keyMap[91] || keyMap[17]) && keyMap[90] && keyMap[16]) {
    console.log('redo');
    keyMap = [];
    return false;
  }
  
  if ((keyMap[91] || keyMap[17]) && keyMap[90]) {
    console.log('undo');
    keyMap = [];
    return false;
  }
 };
	var keyMap = [];
	onkeydown = onkeyup = function(e) {
	e = e \|\| event;
	keyMap[e.keyCode] = e.type == 'keydown';
	if ((keyMap[91] \|\| keyMap[17]) && keyMap[90] && keyMap[16]) {
	console.log('redo');
	keyMap = [];
	return false;
	}

	if ((keyMap[91] \|\| keyMap[17]) && keyMap[90]) {
	console.log('undo');
	keyMap = [];
	return false;
	}
	};