<script type="text/JavaScript">
var whichButtonClicked = function (e) {
var e = e || window.event;
var btnCode;
if ('object' === typeof e) {
btnCode = e.button;
switch (btnCode) {
case 0:
console.log('Left button clicked');
break;
case 1:
console.log('Middle button clicked');
break;
case 2:
console.log('Right button clicked');
break;
default:
console.log('Error: ' + btnCode);
}
}
}
/*
run:
Right button clicked
Left button clicked
*/
</script><button onmouseup="whichButtonClicked(event);" oncontextmenu="event.preventDefault();">
Click On Mouse Buttons</button>