<!DOCTYPE html>
<html lang="en-US">
<body onkeydown="myFunction(event)">
<p>Click on this page once and press ctrlKey or any</p>
<script>
function myFunction(event){
if(event.ctrlKey)
alert("ctrlKey was Pressed");
else
alert("ctrlKey was not Pressed");
}
</script> </body>
</html>