ArsenInvoker,
<!DOCTYPE HTML>
<html>
<head>
<title>Untitled</title>
<meta charset="utf-8">
<style type="text/css">
.qweactiv div{
display: none;
}
</style>
<script>
window.onload=function(){
n = 1;
document.onkeydown = function(event) {
var id = { 81 : 'quas', 87 : 'wex', 69 : 'exort',82 : 'invoke',}[event.keyCode];
if (id) {
document.getElementById(id).style.display = 'block'
}
}
}
</script>
</head>
<body>
<h1>onkeydown q w e r</h1>
<div class="qweactiv">
<div id="quas">
<input id="btn-quas" type="submit" value="Q">
</div>
<div id="wex">
<input id="btn-wex" type="submit" value="W">
</div>
<div id="exort">
<input id="btn-exort" type="submit" value="E">
</div>
<div id="invoke">
<input id="btn-invoke" type="submit" value="R">
</div>
</div>
</body>
</html>