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<!DOCTYPE html> <html> <body onmousedown="WhichButton(event)" style="border:1px solid black;padding:8px"> <h1>Mouse Events</h1> <h2>The which Property</h2> <p>Click in this page with one of your mouse buttons.</p> <p>1 = The left mouse button</p> <p>2 = The middle mouse button</p> <p>3 = The right mouse button</p> <p id="demo"></p> <script> function WhichButton(event) { document.getElementById("demo").innerHTML = "You pressed: " + event.which; } </script> </body> </html>
