Use of JavaScript Event

Test the mouse's keyed function Whichbutton (event) {var a = Event.button;if (a==1) {alert ("This is the 1 key");} else if (a==2) {alert ("This is the 2 key");} else if (a==0) {alert ("This is the 0 key");} Else{alert ("Do not Know");}} Here is the HTML.

The places you want to click are different, depending on where you clicked (or depending on the click button).

Test coordinate function Whichwhere (event) {var x = Event.screenx;var y = Event.screeny;alert ("You clicked on the x-coordinate:" +x+ ", the y-coordinate is" +y ");}

Use of JavaScript Event